Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
2,799 results · page 5 of 56
Sep 24, 2026An out-of-bounds write vulnerability in jslGetTokenValueAsString() in Espruino 2v29 (commit bffc6d0) allows crafted JavaScript input containing an overlong tokeCVE-2026-88390 · Other software · reported by MITREHigh 7.7
An out-of-bounds write vulnerability in jslGetTokenValueAsString() in Espruino 2v29 (commit bffc6d0) allows crafted JavaScript input containing an overlong token to trigger a one-byte write beyond the JsLex.token buffer in RELEASE/NO_ASSERT builds. The out-of-bounds write corrupts the adjacent tokenValue pointer, resulting in memory corruption and potentially causing application crashes or denial of service.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies.CVE-2026-59167 · Other software · JiHong88 · reported by GitHubCritical 10
SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application's browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11.
- Product
- suneditor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026When a Tauri application uses the dialog plugin's file or folder picker, an attacker with JavaScript execution (XSS) can force the scope expansion to be recursiCVE-2026-95627 · Other software · Tauri · reported by reefs@jfrog.comHigh 7.7
When a Tauri application uses the dialog plugin's file or folder picker, an attacker with JavaScript execution (XSS) can force the scope expansion to be recursive, granting read/write access to an entire directory tree after a single user click on a normal-looking OS file dialog. The user has no indication that recursive access was granted, and the expanded scope cannot be revoked for the lifetime of the application.
- Product
- tauri-plugin-dialog
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s JavaScript handling of PDF annotations.CVE-2026-91818 · Other software · Foxit Software Inc. · reported by 14984358-7092-470d-8f34-ade47a7658a2High 7.8
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s JavaScript handling of PDF annotations. Reentrant page-event processing during annotation enumeration may release the associated page object, which is subsequently accessed, resulting in an application crash.
- Product
- Foxit PDF Editor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript.CVE-2026-91817 · Other software · Foxit Software Inc. · reported by 14984358-7092-470d-8f34-ade47a7658a2Medium 6.1
A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of wide strings in embedded PDF JavaScript. Insufficient validation of string-deletion ranges can cause an integer underflow, resulting in an out-of-bounds read and application crash.
- Product
- Foxit PDF Editor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects.CVE-2026-91799 · Other software · Foxit Software Inc. · reported by 14984358-7092-470d-8f34-ade47a7658a2High 7.8
A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of JavaScript array objects. A specially crafted PDF may cause the application to access a released object during array processing, potentially resulting in application crashes or arbitrary code execution.
- Product
- Foxit PDF Editor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution condition involving JavaScript triggered by page-visibCVE-2026-91791 · Other software · Foxit Software Inc. · reported by 14984358-7092-470d-8f34-ade47a7658a2High 7.8
When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution condition involving JavaScript triggered by page-visibility events. This can cause the application to access a released page-view object while calculating annotation boundaries, resulting in an invalid memory read and application crash.
- Product
- Foxit PDF Editor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2026When implementing the JavaScript interface, Foxit PDF Editor/Reader did not perform the attribute authorization checks required by the specification.CVE-2026-91788 · Other software · Foxit Software Inc. · reported by 14984358-7092-470d-8f34-ade47a7658a2Medium 4.7
When implementing the JavaScript interface, Foxit PDF Editor/Reader did not perform the attribute authorization checks required by the specification. As a result, a trusted malicious PDF could potentially access sensitive content from other documents within the same process and transmit it externally.
- Product
- Foxit PDF Editor
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 22, 2026IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary JavaScript in an authenticated user's browser duCVE-2026-18131 · Other software · IBM · reported by psirt@us.ibm.comHigh 8.2
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary JavaScript in an authenticated user's browser due to improper neutralization of HTML input.
- Product
- Financial Transaction Manager (FTM) for RedHat OpenShift
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 22, 2026js-toml is a TOML parser for JavaScript.CVE-2026-63386 · Other software · sunnyadn · reported by GitHubMedium 5.3
js-toml is a TOML parser for JavaScript. Prior to 1.1.3, load() does not bound nesting or dotted-key depth in the recursive parser at src/load/parser.ts or the interpreter at src/load/interpreter.ts, so deeply nested arrays, deeply nested inline tables, or long dotted keys can exhaust the V8 call stack and throw a raw RangeError instead of the documented SyntaxParseError. Applications that parse attacker-controlled TOML and handle only SyntaxParseError can rethrow the unexpected exception, which can terminate a worker or process and cause denial of service. The exception is synchronous and catchable by consumers that handle all exceptions, and the issue does not affect confidentiality or integrity. This issue is fixed in version 1.1.3.
- Product
- js-toml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 22, 2026The Tauri updater plugin's 'check' IPC command accepts an allowDowngrades boolean parameter directly from frontend JavaScript code.CVE-2026-95624 · Other software · Tauri · reported by reefs@jfrog.comMedium 6.8
The Tauri updater plugin's 'check' IPC command accepts an allowDowngrades boolean parameter directly from frontend JavaScript code. When set to true, it replaces the version comparator from "update must be newer" to "update must be different." Because the default permission set grants allow-check to the webview, any XSS in the app frontend can invoke this command and bypass the only anti-rollback protection the updater offers. Combined with another bug, this enables downgrade attacks without even needing to fake a higher version number.
- Product
- tauri-plugin-updater
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 21, 2026An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib/engines.js using eval() to parse front matter when language is js/jCVE-2026-78847 · Other software · reported by MITRECritical 9.8
An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib/engines.js using eval() to parse front matter when language is js/javascript.This allows arbitrary code execution.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.checo.ccgithub.com
Sep 21, 2026MISP contains a DOM-based cross-site scripting (XSS) vulnerability in the contextual menu JavaScript component.CVE-2026-94373 · Other software · MISP · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8Medium 6.3
MISP contains a DOM-based cross-site scripting (XSS) vulnerability in the contextual menu JavaScript component. The ContextualMenu class populates HTML <option> elements by assigning user-controllable values to the innerHTML property. Because innerHTML parses and renders HTML markup, any untrusted string supplied as the option text (value.text or value) is interpreted as live DOM content rather than plain text. An attacker who can influence the data rendered in the contextual menu can inject arbitrary HTML or JavaScript that executes in the victim's browser within the MISP application origin. This may allow session hijacking, data exfiltration, or unauthorized actions performed on behalf of the authenticated user. Version affected: <2.5.47
- Product
- MISP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 19, 2026OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member acceCVE-2026-93985 · Other software · Openpanel-dev · reported by VulnCheckCritical 9.4
OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member access to constructor chains. Attackers with project write access can create webhook templates using computed property notation to access Function constructor and execute arbitrary code in the worker process.
- Product
- openpanel
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 18, 2026Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job.CVE-2026-92708 · Other software · sveltejs · reported by GitHubHigh 7.5
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In versions 5.1.0 through 5.9.2, stringify and uneval functions serialize a typed array by emitting its entire backing ArrayBuffer rather than only the view, so serializing a Node Buffer, whose backing store is a process-wide shared pool, discloses up to 64 KB of unrelated process memory, including bytes from other in-flight requests. In a server-side-rendered framework such as SvelteKit or Nuxt, a public page whose load() returns a small Buffer, or that reads a small file, can therefore ship another user's request body or Authorization header in its HTML without authentication. Because this occurs during serialization, it fires on every such render and is not mitigated by the parse/unflatten prototype-pollution and denial-of-service guards, which only apply when parsing untrusted input. As a workaround, convert Node Buffer objects to Uint8Array before serialization. This issue has been fixed in version 5.9.3.
- Product
- devalue
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026IBM Guardium Data Protection 12.2 could allow a remote authenticated attacker to execute arbitrary JavaScript code due to improper neutralization of input durinCVE-2026-82890 · Other software · IBM · reported by psirt@us.ibm.comMedium 5.9
IBM Guardium Data Protection 12.2 could allow a remote authenticated attacker to execute arbitrary JavaScript code due to improper neutralization of input during web page generation.
- Product
- Guardium Data Protection
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript exprCVE-2026-93759 · Other software · MongoDB Inc. · reported by cna@mongodb.comHigh 8.8
Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.
- Product
- Mongoid
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js.CVE-2026-77301 · Other software · cthackers · reported by GitHubHigh 7.5
adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, getData() in zipEntry.js trusts an entry's central-directory uncompressed size and allocates output memory before validating that value against the actual compressed data and decompression result. A small crafted ZIP can declare a multi-gigabyte uncompressed size, causing Buffer.alloc and decompression handling to commit excessive resident memory before CRC validation reports an error. Applications that read entries from untrusted archives can therefore be terminated by the operating system or suffer service-wide memory exhaustion. This issue is fixed in version 0.6.1.
- Product
- adm-zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026CSS & JavaScript Toolbox: Stored Cross-Site ScriptingCVE-2025-13533 · WordPress plugins & themes · reported by WordfenceMedium 4.4
The CSS & JavaScript Toolbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 12.0.6 via the Assignment Engine fields. This is due to insufficient input sanitization and output escaping on assignment data fields including Expressions, URLs, and Advanced assignment data. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the CJT block edit screen in the admin dashboard.
- Product
- CSS & JavaScript Toolbox
- Affected
- up to 12.0.6
- What to do
- Affects up to 12.0.6. Update CSS & JavaScript Toolbox to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordgist.github.complugins.trac.wordpress.org
Sep 17, 2026A stored cross-site scripting vulnerability in the Geomap panel's MapLibre base layer allows a user with the Editor role to execute arbitrary JavaScript in anotCVE-2026-76154 · Other software · Grafana · reported by security@grafana.comHigh 7.3
A stored cross-site scripting vulnerability in the Geomap panel's MapLibre base layer allows a user with the Editor role to execute arbitrary JavaScript in another user's session by hosting a malicious style configuration, enabling escalation to Org Admin.
- Product
- Grafana OSS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026libp2p is a JavaScript implementation of the libp2p networking stack.CVE-2026-86040 · Other software · libp2p · reported by GitHubHigh 7.5
libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 11.0.26, @libp2p/floodsub accepts unauthenticated RPC frames on /floodsub/1.0.0 through PeerStreams.attachInboundStream in packages/floodsub/src/peer-streams.ts without protobuf element limits, then processRpc and processRpcSubOpt in packages/floodsub/src/floodsub.ts synchronously process the subscriptions array without a per-frame cap. A single bounded-size frame can decode into millions of empty subscription entries that block the event loop, while hundreds of thousands of unique-topic SUBSCRIBE entries allocate PeerSet objects in this.topics that are not removed after peer removal or stop. Empty entries cause CPU exhaustion but do not grow this.topics; persistent memory growth requires unique topics. The subscription path bypasses message signature validation and the message-only processing queue, allowing a remote peer to cause sustained CPU denial of service, memory exhaustion, out-of-memory termination, and node unavailability. The issue is fixed in version 11.0.26.
- Product
- js-libp2p
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026libp2p is a JavaScript implementation of the libp2p networking stack.CVE-2026-86039 · Other software · libp2p · reported by GitHubHigh 8.2
libp2p is a JavaScript implementation of the libp2p networking stack. From 8.0.0 until 12.0.24, @libp2p/peer-store in packages/peer-store/src/index.ts uses consumePeerRecord to verify a RecordEnvelope signature but does not require PeerRecord.peerId in the signed payload to equal the signer peer ID derived by RecordEnvelope.openAndCertify. The expectedPeer option checks only the envelope signer, and the gossipsub Peer Exchange path can provide the attacker's own peer ID as expectedPeer. An attacker can therefore sign a record with the attacker's key, place a victim peer ID and attacker-controlled multiaddrs in the payload, and have certified addresses stored for the victim. The poisoned addresses can cause address-book corruption, dial redirection or failure, routing manipulation, and reachability disruption, although the connection upgrade still verifies remote peer identity and prevents a complete identity takeover. The issue is fixed in version 12.0.24.
- Product
- js-libp2p
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026libp2p is a JavaScript implementation of the libp2p networking stack.CVE-2026-86038 · Other software · libp2p · reported by GitHubHigh 7.5
libp2p is a JavaScript implementation of the libp2p networking stack. From 15.0.0 until 16.0.5, @libp2p/gossipsub uses the default StrictSign policy in packages/gossipsub/src/utils/buildRawMessage.ts, where validateToRawMessage verifies a signature with attacker-controlled msg.key but skips binding that key to msg.from when the claimed author is an RSA peer ID that does not inline a public key. An unauthenticated attacker can place a victim RSA peer ID in msg.from, sign the message with the attacker's private key, and supply the attacker's public key in msg.key, causing the message to be accepted and propagated as authored by the victim. Applications that trust message.from for validators, authorization, accounting, moderation, reputation, or audit logging can process attacker-controlled data under false origin attribution. The issue is fixed in version 16.0.5.
- Product
- js-libp2p
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026ExifReader is a JavaScript Exif information parser.CVE-2026-85715 · Other software · mattiasw · reported by GitHubHigh 7.5
ExifReader is a JavaScript Exif information parser. Prior to 4.41.1, ExifReader parses attacker-controlled HEIC or AVIF ISO-BMFF files in getItems() within src/image-header-iso-bmff-iloc.js and trusts iloc itemCount and extentCount values while allocating an extent object for every nested-loop iteration. When offsetSize, lengthSize, baseOffsetSize, and indexSize are zero, the extent fields consume no input bytes and the buffer offset does not advance, but the parser can still allocate up to itemCount multiplied by extentCount objects without an allocation budget. A small malicious iloc box can therefore cause hundreds of megabytes of heap growth or exhaust system memory, terminating a Node.js process and denying service to web, desktop, or mobile applications that parse untrusted images. The zero field widths are valid ISO-BMFF values indicating absent fields, so the vulnerable parser must bound work rather than relying on offset advancement. The issue is fixed in version 4.41.1.
- Product
- ExifReader
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026vm2 is a sandbox for running untrusted JavaScript.CVE-2026-92962 · Other software · patriksimek · reported by VulnCheckLow 2.1
vm2 is a sandbox for running untrusted JavaScript. In vm2 versions up to and including 3.11.3, the defaultSandboxPrepareStackTrace function in lib/setup-sandbox.js builds its output array using prototype-walking index assignment (lines[lines.length] = value) rather than a prototype-bypassing define-property primitive. Because this bridge-internal array is allocated in the sandbox realm, code inside the sandbox can install an accessor on Array.prototype for the relevant index; the accessor is then invoked whenever the sandbox reads error.stack (or otherwise triggers Error.prepareStackTrace), allowing sandbox code to observe and intercept each stack-trace line written by the bridge. The same pattern is used in the error-handling (catch) branch. The values written are formatted strings only, so the practical impact is limited to an information side channel and a violation of vm2's bridge-container defense invariant rather than a sandbox escape; the vendor rates the issue Low. The issue is fixed in vm2 3.11.4, which installs each entry as an own data property via Reflect.defineProperty.
- Product
- vm2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 17, 2026vm2 is a sandbox library for running untrusted JavaScript in Node.js.CVE-2026-92954 · Other software · patriksimek · reported by VulnCheckCritical 9.2
vm2 is a sandbox library for running untrusted JavaScript in Node.js. In versions >= 3.10.0 and <= 3.11.7, Promises returned from the host realm into the sandbox are not marked as handled at the bridge boundary; only Promises created inside the sandbox are wrapped with a rejection-swallowing handler (lib/setup-sandbox.js), and the bridge only installs host-side rejection sanitizers when sandbox code calls .then/.catch/.finally. As a result, code running in the sandbox can invoke a host function that returns a rejected Promise (for example events.once() exposed via the NodeVM events builtin, or any embedder-provided Promise-returning API) and simply ignore the return value, leaving the host Promise unhandled so that Node.js's default unhandled-rejection behavior terminates the host process. This is an incomplete fix of GHSA-hw58-p9xv-2mjh. The issue is fixed in version 3.11.8.
- Product
- vm2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Sep 17, 2026google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields.CVE-2026-89418 · Computers, phones & browsers · Google · reported by cve-coordination@google.comHigh 8.7
google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.
- Product
- protobuf-javascript (aka google-protobuf npm package)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 17, 2026WPLP Cookie Consent: Does not escape a value submitted through a public endpoint for the JavaScript context it is later output in on an administrative screenCVE-2026-85130 · WordPress plugins & themes · reported by WPScanHigh 8.8
The WPLP Cookie Consent WordPress plugin before 4.4.4 does not escape a value submitted through a public endpoint for the JavaScript context it is later output in on an administrative screen, allowing unauthenticated users to run arbitrary JavaScript in the session of an administrator who interacts with the logged entry. Only multisite installations are affected.
- Product
- WPLP Cookie Consent
- Fixed in
- 4.4.4
- What to do
- Update WPLP Cookie Consent to 4.4.4 or newer.
Sep 16, 2026Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job.CVE-2026-81176 · Other software · sveltejs · reported by GitHubMedium 5.3
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. Prior to 5.9.2, devalue.parse does not reject out-of-bounds indices that are greater than or equal to values.length in src/parse.js. A specially crafted untrusted payload can make the parser alternate between array representations, producing quadratic work as the payload grows and causing denial of service in applications that parse untrusted devalue data. This issue is fixed in version 5.9.2.
- Product
- devalue
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026Xpro Addons — 140+ Widgets for Elementor: Does not validate or sanitize a widget link setting before storing and using it in a JavaScript navigation callCVE-2026-84088 · WordPress plugins & themes · reported by WPScanMedium 6.8
The Xpro Addons — 140+ Widgets for Elementor WordPress plugin before 1.7.9 does not validate or sanitize a widget link setting before storing and using it in a JavaScript navigation call, allowing users with the contributor role and above to inject and store JavaScript that executes in the browser of anyone who interacts with the affected widget.
- Product
- Xpro Addons — 140+ Widgets for Elementor
- Fixed in
- 1.7.9
- What to do
- Update Xpro Addons — 140+ Widgets for Elementor to 1.7.9 or newer.
Sep 15, 2026An attacker can craft a malicious link that, if used by a legitimate user, may cause the user's browser to run JavaScript supplied by the attacker.CVE-2026-15639 · Other software · Delinea · reported by 1443cd92-d354-46d2-9290-d812316ca43aCritical 9.3
An attacker can craft a malicious link that, if used by a legitimate user, may cause the user's browser to run JavaScript supplied by the attacker.
- Product
- Secret Server (On-Prem)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026Use-after-free in the JavaScript: WebAssembly component.CVE-2026-92040 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.mozilla.orgmozilla.org
Sep 15, 2026Use-after-free in the JavaScript Engine: JIT component.CVE-2026-92021 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.mozilla.orgmozilla.org
Sep 15, 2026moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates.CVE-2026-17495 · Other software · moment · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.9
moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. In versions 2.29.2 through 2.30.1, a specially crafted non-string object passed to moment.locale() can bypass the locale-name path-traversal guard. The guard assumes the input is a string, so an object whose match() method satisfies the check while its toString() returns a traversal path reaches an internal require() call with attacker-controlled path segments. This is an incomplete fix for CVE-2022-24785 and primarily affects npm (server-side) users that pass user-provided input directly to moment.locale(). The issue is fixed in moment 2.31.0, and users should upgrade to 2.31.0 or later. As a workaround, validate that any user-supplied input is a string before passing it to moment.locale().
- Product
- moment
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.openjsf.orggithub.com
Sep 14, 2026Argos JavaScript provides official Argos SDKs for JavaScript.CVE-2026-59960 · Other software · argos-ci · reported by GitHubHigh 7.5
Argos JavaScript provides official Argos SDKs for JavaScript. Prior to Argos core package version 6.2.1, attacker-controlled CI branch or ref values from GITHUB_HEAD_REF or ARGOS_BRANCH can flow through config.branch and getMergeBaseCommitSha() when hasRemoteContentAccess is false. The gitFetch() and gitMergeBase() functions in packages/core/src/ci-environment/git.ts interpolate these values into execSync() command strings executed by /bin/sh -c, so shell metacharacters in a pull-request branch name can execute arbitrary commands with the Argos upload process privileges on the CI runner. Successful exploitation can expose CI secrets, alter build artifacts, or compromise the runner. This issue is fixed in Argos core package version 6.2.1.
- Product
- argos-javascript
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 14, 2026gettext-converter provides gettext resource conversion utilities for JavaScript.CVE-2026-55451 · Other software · locize · reported by GitHubHigh 8.3
gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next() in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without rejecting __proto__, constructor, or prototype. When an application converts untrusted PO or i18next translation data, a __proto__ segment resolves Object.prototype as the nested write target and Object.assign writes attacker-controlled translated properties onto the process-wide prototype. The resulting prototype pollution can cause denial of service and may enable application-dependent follow-on attacks. This issue is fixed in version 1.3.3.
- Product
- gettext-converter
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 14, 2026ExifReader is a JavaScript Exif information parser.CVE-2026-53496 · Other software · mattiasw · reported by GitHubMedium 5.3
ExifReader is a JavaScript Exif information parser. Prior to 4.40.1, ExifReader.load() and the asynchronous file and URL loaders can pass attacker-supplied HEIC or AVIF data to the ISO-BMFF parser in src/image-header-iso-bmff.js, where findMetaBox() and parseBox() accept an eight-byte box header without confirming that fields required by the parsed box remain in the DataView. A valid ftyp box followed by an empty free or unknown box can cause an unchecked full-box version read, while a truncated extended-size box can make getBoxLength() and hasEmptyHighBits() read absent size fields. The resulting RangeError escapes the main parsing path and can abort an application request or worker when parse errors are not defensively caught, causing denial of service. This issue is fixed in version 4.40.1.
- Product
- ExifReader
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 14, 2026Yayson is a library for serializing and reading JSON API data in JavaScript.CVE-2026-61534 · Other software · confetti · reported by GitHubCritical 9.1
Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type is __proto__ causes model-cache writes to modify Object.prototype, with the attacker controlling the polluted property name through id and its value through attributes. The malicious type can also be supplied by an included resource, and LegacyStore is reachable when a configured types mapping resolves to __proto__. Unsafe relationship names including __proto__, constructor, and prototype provide additional document-derived member paths. The resulting process-wide prototype pollution can cause denial of service and logic corruption; authorization bypass or code execution depends on suitable gadgets in the consuming application. This issue is fixed in version 4.3.0.
- Product
- yayson
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 13, 2026Grav 1.7.50.2 allows admins to enter JavaScript via the Home Page editor.CVE-2025-64059 · Other software · getgrav · reported by MITRELow 1.8
Grav 1.7.50.2 allows admins to enter JavaScript via the Home Page editor. NOTE: the relevance of this for stored XSS is disputed because admins are allowed to modify templates, install plugins, and upload other executable content.
- Product
- Grav
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddrive.google.comdrive.google.com
Sep 11, 2026AI Builder: Does not sanitise custom JavaScript saved against a post before echoing it inside a script tag on the front endCVE-2026-85678 · WordPress plugins & themes · reported by WPScanMedium 6.8
The AI Builder WordPress plugin before 2.7.8 does not sanitise custom JavaScript saved against a post before echoing it inside a script tag on the front end, allowing users with contributor level access and above to store arbitrary JavaScript that will execute in the browser of anyone who views the post, including the editor or administrator who reviews it.
- Product
- AI Builder
- Fixed in
- 2.7.8
- What to do
- Update AI Builder to 2.7.8 or newer.
Sep 10, 2026Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.CVE-2026-88060 · Other software · angular · reported by GitHubHigh 8.6
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes untrusted input inside template content nested in fallback raw-content elements such as noscript, iframe, noembed, and noframes. The Domino serializer's fallbackRawContentTags traversal stopped at the DocumentFragment used by template.content, so matching closing tags in xmp, style, script, comments, or text nodes were not escaped. Standard interpolation with comments or text nodes is reachable without relaxed schemas; literal xmp or style requires CUSTOM_ELEMENTS_SCHEMA or NO_ERRORS_SCHEMA, while Renderer2 imperative DOM construction is unconditionally affected. When HTML5 RAWTEXT browser parsing encounters the unescaped closing tag, it exits the fallback container and interprets trailing markup as active DOM elements, enabling arbitrary JavaScript execution. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.
- Product
- angular
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 10, 2026Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.CVE-2026-88059 · Other software · angular · reported by GitHubMedium 4
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.28, 21.2.20, and 22.1.1, Angular's @angular/common HttpTransferCache can cache an authenticated response when Server-Side Rendering (SSR) and hydration use a hierarchical HttpClient configured with withRequestsMadeViaParent. The child TransferCache evaluates an initially anonymous request before delegation, then a parent withInterceptors chain adds an Authorization header, cookie, or API token; although the parent cache skips the authenticated request, the child still stores the private response in TransferState serialized as JSON in the ng-state script. Exploitation requires provideClientHydration, child provideHttpClient delegation through withRequestsMadeViaParent, parent-level credential injection, and an SSR HTML response shared across users by a CDN, reverse proxy, or application cache. A later unauthenticated or unauthorized visitor can receive the cached HTML containing the earlier authenticated user's sensitive response data. Applications can mitigate by attaching credentials at the child, filtering sensitive endpoints with withH
- Product
- angular
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 10, 2026Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.CVE-2026-88058 · Other software · angular · reported by GitHubHigh 8.6
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes ProcessingInstruction DOM nodes inside fallback raw-content elements without escaping matching ancestor closing tags. ProcessingInstruction data escaped greater-than characters but left less-than characters untouched and did not inspect fallback ancestors, so data such as a matching closing tag prematurely terminates noscript, iframe, noembed, or noframes containers. The vulnerable nodes cannot be authored through standard Angular templates; reachability requires application or library code using inject(DOCUMENT).createProcessingInstruction with attacker-controlled data or Renderer2 DOM insertion inside a fallback container. In HTML5 RAWTEXT parsing, the premature close causes subsequent sibling elements to be interpreted as live HTML and enables arbitrary JavaScript execution in a victim's browser. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.
- Product
- angular
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 10, 2026Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.CVE-2026-88057 · Other software · angular · reported by GitHubMedium 5.3
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.28, 21.2.20, and 22.1.0, Angular's compiler and runtime in @angular/core and @angular/compiler could omit or select an incorrect sanitizer for security-sensitive directive host bindings because SecurityContext was derived from the declaring directive or component selector rather than the concrete host element. The mismatch is reachable through hostDirectives composition, inherited HostBinding declarations, createComponent with a custom hostElement or dynamic directives, SVG/MathML namespace elements, and tag-neutral selectors such as :not(...). Attacker-controlled href, src, action, xlink:href, or data values can therefore reach DOM attributes without Angular's built-in sanitizer and execute arbitrary JavaScript in the user's browser context. Applications unable to upgrade can use DomSanitizer.sanitize with SecurityContext.URL before assignment or restrict inputs to validated HTTP and HTTPS URL schemes. This issue is fixed in versions 20.3.28, 21.2.20, and 22.1.0.
- Product
- angular
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 10, 2026Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.CVE-2026-88056 · Other software · angular · reported by GitHubHigh 8.6
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular Server-Side Rendering in @angular/platform-server processes user-controlled resource or request URLs through HttpClient after application code validates them with WHATWG URL parsing. The resolveUrl and parseUrl utilities called String.prototype.trim(), which removed leading Unicode whitespace such as U+00A0 or U+FEFF after the input passed a same-origin check, converting a relative path into a protocol-relative attacker-controlled URL. In affected applications that attach sensitive server-side credentials such as Authorization headers to approved requests, relativeUrlsTransformerInterceptorFn then dispatched the request to the attacker-controlled origin, causing SSRF and credential disclosure. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.
- Product
- angular
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2026Payment Plugins for PayPal WooCommerce: Does not validate the order key before adding order data to the JavaScript configuration it outputs on the front endCVE-2026-80340 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.26 does not validate the order key before adding order data to the JavaScript configuration it outputs on the front end, allowing unauthenticated users to obtain the secret that gates access to any order and, through it, that customer's billing and shipping details, by iterating sequential order identifiers.
- Product
- Payment Plugins for PayPal WooCommerce
- Fixed in
- 2.0.26
- What to do
- Update Payment Plugins for PayPal WooCommerce to 2.0.26 or newer.
Sep 9, 2026Payment Plugins for Stripe WooCommerce: Does not validate the order key before adding order data to the JavaScript configuration it outputs on the front endCVE-2026-80339 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Payment Plugins for Stripe WooCommerce WordPress plugin before 4.0.12 does not validate the order key before adding order data to the JavaScript configuration it outputs on the front end, allowing unauthenticated users to obtain the billing details of any order, together with the secret that gates access to it, by iterating sequential order identifiers.
- Product
- Payment Plugins for Stripe WooCommerce
- Fixed in
- 4.0.12
- What to do
- Update Payment Plugins for Stripe WooCommerce to 4.0.12 or newer.
Sep 8, 2026OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE).CVE-2026-53939 · Other software · OpenIDC · reported by GitHubCritical 9.1
OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). In versions 0.6.1 through 0.6.2.5, when cjose encrypts a JWE using an AES-CBC-HMAC content-encryption algorithm (`A128CBC-HS256`, `A192CBC-HS384`, or `A256CBC-HS512`) together with any key-management algorithm that generates a fresh content-encryption key (CEK), the CEK is all zero bytes instead of being randomly generated. The resulting JWE is therefore encrypted and authenticated under a fixed, publicly known key, so anyone who obtains the JWE can recover the plaintext and forge or modify the content. This is fixed in version 0.6.2.6 by `_cjose_jwe_set_cek_aes_cbc()` generating the CEK from `RAND_bytes`. A regression test asserts that the `encrypted_key` differs across two encryptions for each AES-CBC-HMAC variant. Until upgrading, for data encrypted with cjose, three options are available. Use an AES-GCM `enc` (`A128GCM` / `A192GCM` / `A256GCM`) instead of an AES-CBC-HMAC `enc`, use `alg=dir` with a caller-supplied CEK, or avoid using cjose for JWE encryption with the affected algorithm pair. These are mitigations for new ciphertexts only; data already encrypted under the zero key rem
- Product
- cjose
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 8, 2026OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE).CVE-2026-53938 · Other software · OpenIDC · reported by GitHubHigh 8.2
OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). Prior to version 0.6.2.5, cjose's JWE decryption path for the AES Key Wrap key-management algorithms (`alg` = `A128KW`, `A192KW`, `A256KW`) does not validate the length of the attacker-supplied `encrypted_key` (JWE Encrypted Key) before unwrapping it into a fixed-size, heap-allocated Content Encryption Key (CEK) buffer. A remote, unauthenticated attacker who can submit a crafted JWE to an application that decrypts it with an AES-KW symmetric key can trigger an out-of-bounds heap write, corrupting the heap. This leads at minimum to a crash (denial of service) and, depending on the heap layout and allocator, may be leverageable for further memory-corruption impact. `cjose_jwe_import()` / `cjose_jwe_decrypt()` are pre-authentication entry points: they parse and process fully attacker-controlled input. Upgrade to cjose 0.6.2.5 to receive a patch. If upgrading is not immediately possible, reject the AES Key Wrap algorithms (`A128KW`/`A192KW`/`A256KW`) for untrusted JWEs at the application layer.
- Product
- cjose
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 8, 2026In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor paCVE-2026-84197 · Other software · Eclipse Foundation · reported by emo@eclipse.orgCritical 9.2
In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor package @eclipse-ditto/ditto-javascript-client-node_1.0 from 1.0.0 to 2.1.0, the WebSocket transport hard-codes rejectUnauthorized: false when creating the underlying ws WebSocket. Certificate chain and hostname validation are therefore disabled for every wss:// connection, and no builder option, constructor argument or environment variable lets an application turn validation back on. An attacker in a position to intercept the connection can present an arbitrary certificate, complete the TLS handshake, read the credentials that the configured authentication provider sends in the Authorization header of the WebSocket upgrade request, and read, alter or inject Ditto Protocol messages for the lifetime of the connection. The Java client, the browser/DOM JavaScript client and the HTTP transport of the Node.js client are not affected.
- Product
- Eclipse Ditto
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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