Updated 8 h ago

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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

25 results

Oct 22, 2026webpack-dev-server is a development server that provides live reloading for webpack projects.CVE-2026-114348 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.3
webpack-dev-server is a development server that provides live reloading for webpack projects. In versions from 5.1.0 before 5.2.7 and in version 6.0.0, the unauthenticated open-editor endpoint validates the Host header with a regular expression meant for browser Origin schemes, so a Host value beginning with file: or with an extension scheme short-circuits the hostname and allowedHosts checks. A network peer that can reach the dev server can send a request with a malformed Host that passes validation and then causes the endpoint's URL construction to throw, and in the default non-production mode the server returns an HTTP 500 body containing the full exception stack trace, which discloses absolute filesystem paths, installed module locations, and internal source line numbers. The server keeps running, so there is no denial of service. The issue is fixed in webpack-dev-server 5.2.7 and 6.1.0, and users should upgrade to one of those versions or later.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
Oct 22, 2026webpack-dev-server is a development server that provides live reloading for webpack projects.CVE-2026-112085 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbHigh 8.2
webpack-dev-server is a development server that provides live reloading for webpack projects. In versions before 5.2.7 and in version 6.0.0, when a proxy entry is configured to forward WebSockets, the server forwards non-HMR WebSocket upgrade requests to the proxy target without validating the Host or Origin headers, so the allowedHosts protection does not apply to those proxied upgrades. A malicious web page visited by a developer can open a cross-origin WebSocket through the dev server and read from and write to the proxied backend, even when the server is bound to loopback. The issue is fixed in webpack-dev-server 5.2.7 and 6.1.0, where proxied WebSocket upgrades pass the same Host and Origin validation as the HMR WebSocket, and users should upgrade to one of those versions or later. As a workaround, omit WebSocket forwarding from proxy entries that do not need it and scope the proxy to specific paths.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
Sep 8, 2026Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially executeCVE-2026-87639 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.3
Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Product
Chrome
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record chromereleases.googleblog.com issues.chromium.org
Sep 8, 2026Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via aCVE-2026-87634 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comCritical 9.6
Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Product
Chrome
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record chromereleases.googleblog.com issues.chromium.org
Jul 3, 2026webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformCVE-2026-14631 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.3
webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformed Host header or a WebSocket upgrade to the default /ws endpoint with a malformed Origin header. The malformed value causes an uncaught exception in the host-validation path and crashes the dev server. Impact is limited to availability of the development server, no data disclosure, no code execution. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: keep the dev server bound to localhost (the default) and do not expose it to untrusted networks.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
Jul 3, 2026webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that CVE-2026-14620 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 4.7
webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
Jun 15, 2026Impact: When a user-configured proxy on webpack-dev-server has a broad context (e.g.CVE-2026-9595 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.3
Impact: When a user-configured proxy on webpack-dev-server has a broad context (e.g. /) and ws: true, it also intercepts the dev server's own HMR WebSocket and forwards it to the proxy target. This leaks the browser's cookies and Origin header to the backend, bypasses the dev server's Host/Origin validation, and corrupts the HMR socket (both HMR and the proxy end up writing to the same socket). Patches: Fixed in webpack-dev-server@5.2.5. Workarounds: Scope user-defined proxy context to specific paths instead of /, or omit ws: true from the proxy entry when WebSocket forwarding is not required.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
May 12, 2026webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy originCVE-2026-6402 · Other software · webpack-dev-server · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.3
webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cna.openjsf.org github.com
Feb 5, 2026Webpack is a module bundler.CVE-2025-68458 · Other software · webpack · reported by GitHubLow 3.7
Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). If allowedUris enforcement relies on a raw string prefix check (e.g., uri.startsWith(allowed)), a URL that looks allow-listed can pass validation while the actual network request is sent to a different authority/host after URL parsing. This is a policy/allow-list bypass that enables build-time SSRF behavior (outbound requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion (the fetched response is treated as module source and bundled). This issue has been patched in version 5.104.1.
Product
webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com
Feb 5, 2026Webpack is a module bundler.CVE-2025-68157 · Other software · webpack · reported by GitHubLow 3.7
Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that appears restricted to a trusted allow-list can be redirected to HTTP(S) URLs outside the allow-list. This is a policy/allow-list bypass that enables build-time SSRF behavior (requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion in build outputs (redirected content is treated as module source and bundled). This issue has been patched in version 5.104.0.
Product
webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com
Jan 26, 2026Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopaCVE-2026-23864 · Other software · Meta · reported by cve-assign@fb.comHigh 7.5
Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.
Product
react-server-dom-webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record facebook.com access.redhat.com
Dec 11, 2025A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, includCVE-2025-55184 · Other software · Meta · reported by cve-assign@fb.comHigh 7.5
A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Product
react-server-dom-webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record react.dev facebook.com
Dec 11, 2025An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1CVE-2025-55183 · Other software · Meta · reported by cve-assign@fb.comMedium 5.3
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Product
react-server-dom-webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record react.dev facebook.com
Nov 19, 2025Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Eksagate Electronic Engineering and Computer Industry TradCVE-2025-10437 · Other software · Eksagate Electronic Engineering and Computer Industry Trade Inc. · reported by iletisim@usom.gov.trCritical 9.8
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Eksagate Electronic Engineering and Computer Industry Trade Inc. Webpack Management System allows SQL Injection. This issue affects Webpack Management System: through 20251119.
Product
Webpack Management System
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record siberguvenlik.gov.tr usom.gov.tr
Jun 3, 2025webpack-dev-server allows users to use webpack with a development server that provides live reloading.CVE-2025-30360 · Other software · webpack · reported by GitHubMedium 6.5
webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when you access a malicious web site with non-Chromium based browser. The `Origin` header is checked to prevent Cross-site WebSocket hijacking from happening, which was reported by CVE-2018-14732. But webpack-dev-server always allows IP address `Origin` headers. This allows websites that are served on IP addresses to connect WebSocket. An attacker can obtain source code via a method similar to that used to exploit CVE-2018-14732. Version 5.2.1 contains a patch for the issue.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Jun 3, 2025webpack-dev-server allows users to use webpack with a development server that provides live reloading.CVE-2025-30359 · Other software · webpack · reported by GitHubMedium 5.3
webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when they access a malicious web site. Because the request for classic script by a script tag is not subject to same origin policy, an attacker can inject a malicious script in their site and run the script. Note that the attacker has to know the port and the output entrypoint script path. Combined with prototype pollution, the attacker can get a reference to the webpack runtime variables. By using `Function::toString` against the values in `__webpack_modules__`, the attacker can get the source code. Version 5.2.1 contains a patch for the issue.
Product
webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Aug 27, 2024Webpack is a module bundler.CVE-2024-43788 · Other software · webpack · reported by GitHubMedium 6.4
Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset. The webpack developers have discovered a DOM Clobbering vulnerability in Webpack’s `AutoPublicPathRuntimeModule`. The DOM Clobbering gadget in the module can lead to cross-site scripting (XSS) in web pages where scriptless attacker-controlled HTML elements (e.g., an `img` tag with an unsanitized `name` attribute) are present. Real-world exploitation of this gadget has been observed in the Canvas LMS which allows a XSS attack to happen through a javascript code compiled by Webpack (the vulnerable part is from Webpack). DOM Clobbering is a type of code-reuse attack where the attacker first embeds a piece of non-script, seemingly benign HTML markups in the webpage (e.g. through a post or comment) and leverages the gadgets (pieces of js code) living in the existing javascript code to transform it into executable code. This vulnerability can lead to cross-site scripting (XSS) on websites that include Webpack-generated files and allow users to inject certain scriptless HTML tags with improperly
Product
webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Mar 21, 2024Prior to versions 7.1.0, 6.1.2, and 5.3.4, the webpack-dev-middleware development middleware for devpack does not validate the supplied URL address sufficientlyCVE-2024-29180 · Other software · webpack · reported by GitHubHigh 7.4
Prior to versions 7.1.0, 6.1.2, and 5.3.4, the webpack-dev-middleware development middleware for devpack does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine. The middleware can either work with the physical filesystem when reading the files or it can use a virtualized in-memory `memfs` filesystem. If `writeToDisk` configuration option is set to `true`, the physical filesystem is used. The `getFilenameFromUrl` method is used to parse URL and build the local file path. The public path prefix is stripped from the URL, and the `unsecaped` path suffix is appended to the `outputPath`. As the URL is not unescaped and normalized automatically before calling the midlleware, it is possible to use `%2e` and `%2f` sequences to perform path traversal attack. Developers using `webpack-dev-server` or `webpack-dev-middleware` are affected by the issue. When the project is started, an attacker might access any file on the developer's machine and exfiltrate the content. If the development server is listening on a public IP address (or `0.0.0.0`), an attacker on the local network can access the local fi
Product
webpack-dev-middleware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Mar 12, 2023Webpack 5 before 5.76.0 does not avoid cross-realm object access.CVE-2023-28154 · Other software · Webpack.js · reported by MITRECritical 9.8
Webpack 5 before 5.76.0 does not avoid cross-realm object access. ImportParserPlugin.js mishandles the magic comment feature. An attacker who controls a property of an untrusted object can obtain access to the real global object.
Product
Webpack
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Dec 15, 2022Directory Traversal vulnerability in easywebpack-cli before 4.5.2 allows attackers to obtain sensitive information via crafted GET request.CVE-2020-24855 · Other software · Easyjs · reported by MITREMedium 5.3
Directory Traversal vulnerability in easywebpack-cli before 4.5.2 allows attackers to obtain sensitive information via crafted GET request.
Product
Easywebpack-cli
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 14, 2022A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the url variabCVE-2022-37603 · Other software · Webpack.js · reported by MITREHigh 7.5
A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the url variable in interpolateName.js.
Product
Loader-utils
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 12, 2022Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js.CVE-2022-37601 · Other software · Webpack.js · reported by MITRECritical 9.8
Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js. This affects all versions prior to 1.4.1 and 2.0.3.
Product
Loader-utils
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record users.encs.concordia.ca dl.acm.org
Oct 11, 2022A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the resourcePaCVE-2022-37599 · Other software · Webpack.js · reported by MITREHigh 7.5
A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the resourcePath variable in interpolateName.js.
Product
Loader-utils
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 19, 2020In webpack-subresource-integrity before version 1.5.1, all dynamically loaded chunks receive an invalid integrity hash that is ignored by the browser, and thereCVE-2020-15262 · Other software · waysact · reported by GitHubLow 3.7
In webpack-subresource-integrity before version 1.5.1, all dynamically loaded chunks receive an invalid integrity hash that is ignored by the browser, and therefore the browser cannot validate their integrity. This removes the additional level of protection offered by SRI for such chunks. Top-level chunks are unaffected. This issue is patched in version 1.5.1.
Product
webpack-subresource-integrity
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 21, 2018An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6.CVE-2018-14732 · Other software · Webpack.js · reported by MITREHigh 7.5
An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.
Product
Webpack-dev-server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record blog.cal1.cn github.com

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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Vulnerability database

The flaws that hit local websites, every Friday.

Tell us what you're building.