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.
4,613 results · page 4 of 93
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105851 · Other software · payloadcms · reported by GitHubCritical 9.3
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105850 · Other software · payloadcms · reported by GitHubHigh 8.8
Payload is a free and open source headless content management system. In @payloadcms/plugin-ecommerce versions before 3.90.0 and canary versions before 4.0.0-canary.34, use of the Stripe payment adapter can allow a Stripe order confirmation to be processed more than once under certain conditions. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105849 · Other software · payloadcms · reported by GitHubHigh 7.7
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, users with ordinary read access to other authentication documents in a collection with useAPIKey enabled can obtain active API keys and exercise the target accounts' permissions until those keys are rotated or disabled. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105848 · Other software · payloadcms · reported by GitHubMedium 6.4
Payload is a free and open source headless content management system. In @payloadcms/plugin-stripe versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user who can reach the enabled optional Stripe REST proxy can perform unintended Stripe operations. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105847 · Other software · payloadcms · reported by GitHubHigh 7.1
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a user who can query a collection with a polymorphic join to sensitive fields can infer hidden or read-restricted values, including password-reset tokens, through polymorphic join filters. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105846 · Other software · payloadcms · reported by GitHubMedium 6.1
Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105845 · Other software · payloadcms · reported by GitHubCritical 9.8
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an untrusted user who can query readable collections through dynamic filters or joins can submit a request that causes SQL injection in the SQLite and Postgres adapters. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105844 · Other software · payloadcms · reported by GitHubCritical 9.3
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105806 · Other software · payloadcms · reported by GitHubHigh 8.6
Payload is a free and open source headless content management system. In @payloadcms/plugin-mcp versions from 3.61.0 until 3.88.0, an authenticated user can manage MCP API keys outside the intended account, enabling privilege escalation through account takeover. This issue is fixed in version 3.88.0.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105805 · Other software · payloadcms · reported by GitHubMedium 6.9
Payload is a free and open source headless content management system. In versions before 3.88.0 and canary versions before 4.0.0-canary.27, an untrusted user who can query a readable collection, control its sorting, and select a protected field as the sort parameter can infer limited information about field values the user cannot read. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026Payload is a free and open source headless content management system.CVE-2026-105804 · Other software · payloadcms · reported by GitHubMedium 5.7
Payload is a free and open source headless content management system. Payload versions from 3.0.0 before 3.90.0 and canary versions from 4.0.0-canary.0 before 4.0.0-canary.34 use a lower-than-recommended PBKDF2 work factor for password hashing, reducing the computational effort required to test recovered password hashes. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
- Product
- payload
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 5, 2026Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks.CVE-2026-105786 · Other software · laurent22 · reported by GitHubHigh 8.5
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, packages/server/src/models/ApplicationModel.ts accepts a caller-chosen application authorization identifier, applications/:id/confirm binds that identifier to a logged-in user through a generic consent page, and the public packages/server/src/routes/api/application_auth.ts endpoint passes it to ApplicationModel.createAppPassword without authenticating or binding the redeemer. An attacker can cause a victim to approve the attacker's identifier, redeem a durable application ID and password, and exchange the credential for a victim session with full read and write access to synchronized data. This vulnerability is fixed in 3.7.13.
- Product
- joplin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 5, 2026Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks.CVE-2026-105785 · Other software · laurent22 · reported by GitHubMedium 4.8
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to Joplin Server 3.7.2, packages/server/src/models/TokenModel.ts stores CSRF, account-confirmation, email-change, and password-reset tokens without a purpose, and packages/server/src/models/UserModel.ts allows UserModel.resetPassword to accept any token returned by TokenModel.userFromToken. An attacker who obtains a victim's CSRF or confirmation token through a separate disclosure channel can submit it to the public password-reset endpoint, replace the victim's password, and cause the existing sessions and API applications to be deleted. This issue is fixed in Joplin Server 3.7.2.
- Product
- joplin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 5, 2026Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks.CVE-2026-105784 · Other software · laurent22 · reported by GitHubMedium 4.6
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, selecting a note containing a jsoncanvas fence causes the whiteboard text and file-node components in packages/app-desktop/gui/NoteEditor/NoteBody/WhiteboardEditor/nodes/TextNode.tsx and packages/app-desktop/gui/NoteEditor/NoteBody/WhiteboardEditor/nodes/FileNode.tsx to render card content with the full Markdown renderer. The components insert the resulting HTML into the main application document through dangerouslySetInnerHTML. A malicious note can inject style elements and remote CSS imports that modify trusted application chrome, signal when the note is opened, and potentially disclose exposed attribute values. Content Security Policy blocks inline script execution, so the supported impact is CSS injection and UI redressing rather than code execution. This issue is fixed in version 3.7.13.
- Product
- joplin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 5, 2026Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks.CVE-2026-105783 · Other software · laurent22 · reported by GitHubHigh 8
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, when Joplin Desktop is running with the opt-in Web Clipper server enabled, the server in packages/lib/ClipperServer.ts sends Access-Control-Allow-Origin: * and allows an arbitrary website to call POST /auth and GET /auth/check because the pairing endpoints do not reject HTTP or HTTPS origins. The desktop confirmation dialog does not identify the requesting origin, so a victim who approves the generic prompt authorizes the attacking page, which then receives the permanent API token. The token provides ongoing read and write access to notes, folders, tags, resources, and master keys. This issue is fixed in version 3.7.13.
- Product
- joplin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 5, 2026Kunstmaan CMS is an open source content management system based on the Symfony framework.CVE-2026-104890 · Other software · Kunstmaan · reported by GitHubHigh 7.2
Kunstmaan CMS is an open source content management system based on the Symfony framework. Prior to 7.3.2, src/Kunstmaan/MediaBundle/Helper/File/FileHandler.php performs the blacklisted_extensions check case-sensitively in FileHandler::getFilePath and lowercases the stored extension afterward. An authenticated backend user with media access can upload a mixed-case executable extension such as PHP that bypasses the check and is stored in the web-accessible media directory with an executable lowercase extension. The default blacklist also omits several server-executable extension types, allowing the same code-execution impact where the web server executes uploaded files. This issue is fixed in version 7.3.2.
- Product
- KunstmaanBundlesCMS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 29, 2026Flysystem is an open source file storage library for PHP.CVE-2026-102601 · Other software · thephpleague · reported by GitHubLow 3.5
Flysystem is an open source file storage library for PHP. Prior to 3.35.3, the default WhitespacePathNormalizer in src/WhitespacePathNormalizer.php used by Filesystem across adapters calls preg_match with the u modifier and treats both false and 0 as falsy. A path containing malformed UTF-8 causes PCRE to return false, so paths that also contain control characters bypass CorruptedPathDetected::forPath() in normalizePath(). Filesystem::write() can store such names and Filesystem::listContents() can return the raw ANSI escape sequences, allowing hidden or spoofed terminal file listings when an administrator displays them. This issue is fixed in version 3.35.3.
- Product
- flysystem
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026A code injection vulnerability has been discovered in the Robot Operating System 2 (ROS 2) 'ros2topic' command-line tool, affecting all ROS 2 distributions fromCVE-2024-42002 · Other software · Open Source Robotics Foundation · reported by security@ubuntu.comHigh 8.6
A code injection vulnerability has been discovered in the Robot Operating System 2 (ROS 2) 'ros2topic' command-line tool, affecting all ROS 2 distributions from Crystal Clemmys up to and including Lyrical Luth and Rolling Ridley. The vulnerability lies in the 'hz' verb, which reports the publishing rate of a topic and accepts a user-provided Python expression via the --filter option. This input is passed directly to the eval() function without sanitization, allowing a local user to craft and execute arbitrary code.
- Product
- Robot Operating System 2 (ROS 2)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments.CVE-2026-100392 · Other software · InvoicePlane · reported by GitHubHigh 7
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. In version 1.7.2, Users::form() performs no object-level authorization check on user_id = 1. A Secondary Administrator (user_type = 1, user_id != 1) can rewrite the Primary Administrator's user_type to 2 (Guest / read-only), destroying the root account's privilege and locking the legitimate owner out of the instance. At time of publication, there are no publicly available patches.
- Product
- InvoicePlane
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments.CVE-2026-100371 · Other software · InvoicePlane · reported by GitHubHigh 8.7
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. In version 1.7.2, an authorization guard to Users::change_password(), was added to address a previous authorization flaw that allowed a secondary administrator (user_type=1, user_id != 1) to directly change the password of the primary administrator (user_id=1) through users/change_password/{id}. That remediation, however, protects only the direct password-change operation. It does not protect the identity attribute that password recovery actually trusts: user_email. Users::form() applies no equivalent object-level authorization check when editing the primary administrator's account, and user_email is not included in PROTECTED_FIELDS. A secondary administrator can therefore rewrite the primary administrator's email address, then drive the public password-recovery flow — which resolves the account by user_email — to receive the reset token and take over user_id=1. The result is an alternate attack path that achieves the same impact PR #1638 was intended to prevent: cross-administrator full account takeover of the primary administrator. This issue has been patched via commit 8616fa4.
- Product
- InvoicePlane
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-75600 · Other software · FreePBX · reported by GitHubHigh 8.6
FreePBX is an open source IP PBX. Prior to version 17.0.9, authenticated users who are authorized to access the GraphQL api module interface of FreePBX are able to execute arbitrary shell commands. Authenticated access to the api module is required. The PBX API module's documentation generator accepts an authenticated host parameter and uses it to build a shell command. The code path validates the generated OAuth access token before execution, but it does not validate or escape host. Compromise results in authenticated arbitrary shell command execution as the FreePBX web/PBX service user (typically asterisk.). This issue has been patched in version 17.0.9.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-54710 · Other software · FreePBX · reported by GitHubHigh 8.6
FreePBX is an open source IP PBX. Prior to versions 16.0.40 and 17.0.7, a critical remote code execution (RCE) vulnerability exists in the superfecta module due to unsafe inclusion of arbitrary PHP files, allowing authenticated attackers to execute arbitrary PHP code on the server with the privileges of the web server user. Authentication with a known username is required. The vulnerability is rooted in the options and save_options cases in the Superfecta module's AJAX handler. The code dynamically includes PHP files from the sources/ directory based on user-supplied input. This allows an attacker to execute arbitrary code when combined with arbitrary directory creation (e.g., via the backup module) and file uploads that reveal full paths (e.g., via the soundlang module). This issue has been patched in versions 16.0.40 and 17.0.7.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-54708 · Other software · FreePBX · reported by GitHubHigh 8.6
FreePBX is an open source IP PBX. Prior to versions 16.0.72 and 17.0.7, a critical vulnerability exists in the FreePBX backup Module that allows authenticated attackers to execute arbitrary code on the server. Authentication with a known username that has sufficient access permissions and/or write access to backup files is required. This vulnerability is caused by improper path sanitization in the backup restore functionality, enabling attackers to upload malicious PHP files to the web root directory. This issue has been patched in versions 16.0.72 and 17.0.7.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-54675 · Other software · FreePBX · reported by GitHubHigh 8.7
FreePBX is an open source IP PBX. Prior to versions 16.0.10 and 17.0.5, a critical vulnerability exists in the sound language upload and conversion functionality that allows an authenticated attacker to perform arbitrary file writes, leading directly to remote code execution (RCE). Authentication with a known username is required. The vulnerability stems from insufficient path sanitization in the file conversion process, enabling path traversal attacks that place malicious PHP files in the web server's root directory. This issue has been patched in versions 16.0.10 and 17.0.5.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-54674 · Other software · FreePBX · reported by GitHubHigh 8.6
FreePBX is an open source IP PBX. Prior to versions 16.0.39 and 17.0.7, users authenticated via User Control Panel (UCP) are able to execute arbitrary commands on the PBX as the webserver user (typically asterisk) using specially crafted HTTP strings. Authenticated access to UCP is required. Note that this is often more common for less-privileged users to have UCP access vs. the Administrator Control Panel (ACP) access (which is usually FreePBX higher-level administrator accounts only). Insufficient sanitization of certain URL parameters utilized by UCP did not fully account for malicious strings in these fields. This could result in binaries being executed on the host server by carefully chaining commands. This issue has been patched in versions 16.0.39 and 17.0.7.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2026FreePBX is an open source IP PBX.CVE-2026-45562 · Other software · FreePBX · reported by GitHubHigh 7.7
FreePBX is an open source IP PBX. Prior to versions 16.0.4 and 17.0.6, the FreePBX Music on Hold (MoH) module contains a critical security flaw that allows authenticated attackers to execute arbitrary system commands with the privileges of the Asterisk service. Authentication with an existing FreePBX administrator account is required. The root cause lies in the fact that the module accepts a POST parameter that defines a custom Asterisk application, which is then stored in the database without any sanitization. Later, this data is written directly to the musiconhold_additional.conf configuration file without validation. Since Asterisk reads this configuration file and executes the specified application, an attacker can inject arbitrary commands that will be executed with Asterisk's permissions. This issue has been patched in versions 16.0.4 and 17.0.6.
- Product
- security-reporting
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2026Parse Server is an open source backend server.CVE-2026-100631 · Other software · parse-community · reported by VulnCheckHigh 8.7
Parse Server is an open source backend server. In versions prior to 8.6.90 and in versions from 9.0.0 prior to 9.10.1-alpha.9, the device token deduplication logic for installation records does not validate the type of client-supplied installation fields before using them to build database queries. An unauthenticated remote attacker who knows only the public application ID can submit non-string values in these fields to inject query operators, causing the deduplication cleanup — which runs with elevated privileges before class-level permissions are evaluated — to delete every device registration in the application or an attacker-chosen subset of them. No account, session token, master key, or user interaction is required. Deleted registrations cannot be recovered on the server, so push notifications cannot be delivered until every client re-registers. Any deployment that exposes the REST API to clients and uses push notifications is affected in its default configuration. Versions 8.6.90 and 9.10.1-alpha.9 fix the issue by rejecting non-string values with a client error and by scoping the deduplication cleanup to the calling application. No workaround other than upgrading is availab
- Product
- parse-server
- 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 25, 2026InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments.CVE-2026-88003 · Other software · InvoicePlane · reported by GitHubHigh 7.5
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane fails to revoke administrative privileges after a role downgrade because Admin_Controller trusts the user_type snapshot stored in an existing session instead of revalidating ip_users.user_type. When one administrator downgrades another account, the target's active session continues to authorize administrative requests. The downgraded user can use Users::form() to set user_type back to 1, restoring the database role and making the privilege escalation persistent. This vulnerability is fixed in 1.7.2.
- Product
- InvoicePlane
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84465 · Other software · zammad · reported by GitHubHigh 7.1
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when Zammad checks the digital signature on an incoming S/MIME-signed email, it does not verify that the signing certificate is genuinely trusted, it only checks whether a certificate with a matching name is already stored in the system. An attacker can create their own certificate using the name of a real, previously trusted sender and use it to send a forged email. Zammad will display that email with the same "validly signed" indicator as a genuine message from the real sender, even though the attacker never had access to that sender's actual certificate or private key. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84464 · Other software · zammad · reported by GitHubHigh 7.1
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's External Data Source feature, used to look up records from an external system, did not properly verify whether a user was allowed to see a specific ticket, user, group, or organization before including its details in a request to that external system. An authenticated user, including one with only basic customer access, could exploit this by referencing another record's ID, and thereby view details of tickets, customer accounts, teams, or organizations that did not belong to them. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84463 · Other software · zammad · reported by GitHubMedium 6.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, a user with Knowledge Base editing rights for a category can embed a video widget in a published answer with a specially crafted value. When the answer is rendered, that value is inserted into the page's HTML without being escaped for its attribute context, allowing it to break out and inject additional HTML into the page. When another user who has permission to switch between user sessions views the affected answer, the injected HTML causes their browser to silently send a request to Zammad's session-switching endpoint using their own active credentials. This results in switching their session to an account chosen by the person who wrote the Knowledge Base answer. No action is required from the viewer beyond opening the published answer. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84461 · Other software · zammad · reported by GitHubMedium 6.9
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the two-factor login step let an attacker try unlimited password guesses for any account without triggering Zammad's normal lockout or rate limiting. The response also revealed whether a guess was correct, even before two-factor authentication was checked. This made it possible to brute-force weak or reused passwords. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84460 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization feature and may contain sensitive labels. Ticket IDs are sequential integers, making bulk enumeration straightforward. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84458 · Other software · zammad · reported by GitHubCritical 9.1
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party (SSO) identity to an existing local account by matching the email address the identity provider reports, without verifying that the provider actually confirmed ownership of that email. An attacker who controls any identity at a configured provider, including, by default, any Azure AD tenant via Zammad's multi-tenant Microsoft 365 /common app registration, can set that identity's email to a victim's address, authenticate, and be logged in as the victim. This bypasses the victim's local password entirely and affects any existing account, including agents and administrators. Zammad will honor the xms_edov ID token claim when email verification is required in the Microsoft 365 setting, treating a missing claim as unverified. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63216 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, unsanitized option labels are rendered in the configuration dialogs of AI Agents within Zammad's admin UI. When rendering the list of selected options, the option label is output as raw HTML without escaping. An attacker who can control an option label, for example by setting a malicious string as a user or organization name used in a relation attribute, or by supplying a crafted custom attribute option value, can inject arbitrary HTML and JavaScript. The payload executes in the browser of any admin or agent who opens the affected object attribute configuration view. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63208 · Other software · zammad · reported by GitHubMedium 5.1
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when a Microsoft Graph request fails, Zammad logs the error including the authentication token used to access the mailbox. The system attempts to hide this token in the log, but the masking is incomplete: for the token format Microsoft uses (JWT), only the first part is hidden, while the remaining parts remain readable in plain text. A Zammad admin with Microsoft Graph channel access can view these logs and see the partial token, which may reveal sensitive claims such as the account scope, tenant, or timing, and could assist in reconstructing the full token while it is still valid. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63207 · Other software · zammad · reported by GitHubMedium 6.9
Zammad is a web based open source helpdesk/customer support system. In 7.0.3 and 7.1.1, an authenticated administrator can obtain stored integration credentials in cleartext through the integration administration API. Certain responses do not consistently mask sensitive fields, so configured secrets can be returned in plain text instead of the expected masked placeholder. Both the LDAP and Exchange integrations are affected. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63206 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's HTML sanitizer, which blocks remote images in ticket articles and email views, can be bypassed using a shortened URL format that omits the double slash after the scheme (for example a shortened HTTP URL instead of a shortened HTTP URL). Modern browsers treat both forms as equivalent remote URLs. As a result, an attacker who sends a crafted email or ticket can cause the recipient's browser to silently load an image from an external server, revealing when and by whom the ticket was opened. Zammad's "remote content blocked" warning is not shown because the sanitizer does not recognize the shortened form as remote. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63205 · Other software · zammad · reported by GitHubMedium 5.1
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies that attachment into a new signature-owned record, without checking whether the user has permission to access the original attachment. The newly created copy is then downloadable by the same channel-admin user, because attachment access is determined by the copy's owner (the signature), not the original object (e.g., a ticket or knowledge-base article). This allows a user with any of the admin.channel_email, admin.channel_google, admin.channel_microsoft365, or admin.channel_microsoft_graph permissions to read attachments they would otherwise be denied access to, such as ticket attachments belonging to groups they are not a member of. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63204 · Other software · zammad · reported by GitHubLow 2.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, an authenticated user with agent permissions can supply an arbitrary AI analytics run identifier to the ticket summarize endpoint and receive the AI provider error message stored for that run, even if the run belongs to a ticket the agent is not authorized to access. The disclosure is limited to the provider error string; ticket content is not exposed. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-63006 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-61855 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. In 7.0.3 and 7.1.1, under certain conditions, Zammad's verification of inbound PGP-signed email can mark a message as carrying a valid ("Good") PGP signature from a registered sender key, even though the displayed message content is not actually covered by that signature. As a result, the inbound article may be stored with a successful signature status that does not reflect the authenticity of the shown content. This can mislead agents who rely on the signature indicator when assessing the trustworthiness of incoming mail. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-84462 · Other software · zammad · reported by GitHubHigh 8.6
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, a security filter that protects Zammad's AI Agent configuration can be bypassed by entering specially crafted text into one of an AI Agent's fields. An administrator with permission to create or edit AI Agents could exploit this to run arbitrary commands on the server that hosts Zammad, potentially reading, modifying, or destroying all data stored on that server. No interaction from other users is needed; the malicious code runs automatically the next time the affected AI Agent processes a ticket. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-65828 · Other software · zammad · reported by GitHubLow 2.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the legacy destroy_form action on AttachmentsController deletes UploadCache Store records based solely on a user-supplied form_id without verifying that the requesting user owns those records. An authenticated attacker who learns another user's pending-upload UUID can silently remove temporary file uploads before the victim submits their ticket or article. This issue is fixed in version 7.1.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-61525 · Other software · zammad · reported by GitHubHigh 8.8
Zammad is a web based open source helpdesk/customer support system. In 7.0.2 and 7.1.0, zammad's session management for websocket and long-polling connections is susceptible to a path traversal attack. Session identifiers supplied by the client are insufficiently validated before being used to construct internal file paths. When the file-based session store is active (the default configuration), an authenticated attacker can manipulate the session identifier to reference locations outside the intended storage directory, leading to the deletion of arbitrary files and directories on the server. Exploitation requires only a low-privilege authenticated session and a single crafted request. Instances configured to use the Redis-based session store are not affected. This issue is fixed in versions 7.0.3 and 7.1.1.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-56735 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2 and 7.1.0, zammad's HTML sanitizer (HtmlSanitizer::Strict) blocks external URLs in to prevent remote content loading, but the srcset attribute, also allowlisted for , is not subject to the same check. This oversight allows an attacker to embed arbitrary external URLs in the srcset attribute just by sending an e-mail, effectively bypassing the external content protection. When an agent views the ticket containing the malicious srcset, the browser will silently load the attacker-controlled URL, resulting in the leakage of the agent's IP address, User-Agent, Referer, and the exact time the ticket was viewed. HtmlSanitizer::Strict got extended to block external URLs in the srcset attribute of tags. This was done to prevent tracking pixels and external content loading, which could compromise user privacy. This issue is fixed in versions 7.0.2 and 7.1.0.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-56734 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, during federated authentication (OAuth/OIDC/SAML), a profile image URL from the external identity provider is fetched without verifying the target address. An actor who controls their profile at a connected provider may cause the server to connect to internal network locations. Response timing and error patterns differ between reachable and unreachable targets, allowing internal service probing. Worker processes may be blocked for several seconds per request. Requires a configured external authentication provider where the actor can modify their profile image URL. This issue is fixed in version 7.0.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-56733 · Other software · zammad · reported by GitHubHigh 8.7
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2 and 7.1.0, this issue concerns a lack of discursive validation within the authorization cascade. It has been determined that the system-level enforcement of access restrictions during the initialization of new identity objects exhibits a discrepancy: Under specific conditions, the granular restrictions of the access key being used are overridden by the latent authorization authority of the parent account. Consequently, this means that the intended separation of functional areas is nullified, resulting in an uncontrolled expansion of administrative discretion. Due to this potential integrity breach of the entire trust environment, an immediate evaluation of the authorization hierarchies is imperative. Impact An attacker can create new administrator accounts despite token restrictions. This grants full access to all system data (tickets, customers, configuration) and allows the attacker to take complete control of the Zammad instance. Abuse Scenario The vulnerability stems from a lack of synergy between the token-based authorization logic and the target system's functional authorization hierarchy, whic
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-56732 · Other software · zammad · reported by GitHubMedium 5.3
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, vulnerability in Zammad's HTML sanitization allows injection of specific HTML elements into ticket bodies. When another user views the crafted ticket, the injected element can trigger a logout request, terminating the viewer's session. This vulnerability is fixed in 7.0.2.
- Product
- zammad
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 25, 2026Zammad is a web based open source helpdesk/customer support system.CVE-2026-56731 · Other software · zammad · reported by GitHubHigh 8.4
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, a low-privilege authenticated user may inject arbitrary HTML markup, including JavaScript event handlers, into a ticket title via the standard ticket creation workflow. The title is persisted without sanitization. This issue is fixed in version 7.0.1.
- Product
- zammad
- 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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