Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion

Summary Any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile authorization gate unconditionally grants access through its shared-chat branch. It checks neither the requesting...

GHSA-26G9-27VM-X3Q8 Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion

Summary Any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile authorization gate unconditionally grants access through its shared-chat branch. It checks neither the requesting...

Authorization Bypass Through User-Controlled Key

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the getfolders and processchatpayload paths in the folder and chat handling code. An attacker can read files and knowledge collections they do not have...

Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Cross-User File Access via Unchecked fileid in Folder Knowledge and Knowledge-Base Attach Endpoints Summary Multiple endpoints accept a user-supplied fileid and attach the referenced file to a resource the caller controls folder knowledge, knowledge-base contents without verifying that the caller...

GHSA-R472-MW7M-967F Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Cross-User File Access via Unchecked fileid in Folder Knowledge and Knowledge-Base Attach Endpoints Summary Multiple endpoints accept a user-supplied fileid and attach the referenced file to a resource the caller controls folder knowledge, knowledge-base contents without verifying that the caller...

Authorization Bypass Through User-Controlled Key

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the retrieval process, specifically when validating access to knowledge base collections by UUID. An attacker can access, modify, or delete another user's...

GHSA-4G37-7P2C-38R9 Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

Apostrophe has a Weak Password Recovery Mechanism for Forgotten Password and Improper Input Validation

Summary ApostropheCMS's password reset flow constructs the reset URL using req.hostname, which is derived directly from the attacker-controlled HTTP Host header when apos.baseUrl is not explicitly configured. An unauthenticated attacker who knows a victim's email address can send a crafted reset...

Arbitrary Argument Injection

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to Arbitrary Argument Injection in a push operation. A user with permission to create or modify workflows can read arbitrary files on the server by injecting CLI flags during workflow creation or...

UNIX Symbolic Link (Symlink) Following

Overview Affected versions of this package are vulnerable to UNIX Symbolic Link Symlink Following via the pgbasebackup or pgrewind process. An attacker can overwrite arbitrary files on the local system by leveraging symlink following, potentially hijacking the operating system account. This is on...

CVE-2026-41935

Vvveb before 1.0.8.3 contains an uncontrolled recursion vulnerability in the admin controller dispatch cycle where Base::init repeatedly invokes permission on error handlers, causing infinite recursion until PHP memory limits are exhausted. Attackers can send sustained requests to forbidden admin...

CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

CVE-2026-6475

Summary (CVE-2026-6475) : PostgreSQL suffers a symlink-following issue in the pg_basebackup plain format and in pg_rewind. An origin superuser can overwrite local files (for example, /var/lib/postgres/.bashrc), which could later be trusted when the server starts due to features like shared_preloa...

CLSA-2026-1778749215 ghostscript: Fix of 2 CVEs

CVE-2024-29508: heap pointer disclosure in pdfbasefontalloc via synthesized BaseFont name - CVE-2025-48708: argument sanitisation missed '' separator, leaking -sUserPasswordsecret values into output PDF metadata...

FileBrowser Quantum 路径遍历漏洞

FileBrowser Quantum is a file manager developed by Graham Steffaniak. Versions prior to 1.3.1-stable and 1.3.9-beta contained a path traversal vulnerability. This vulnerability stemmed from the concatenation of trusted base paths before path cleaning, which could lead to directory traversal attac...

PT-2026-41155

Name of the Vulnerable Software and Affected Versions ApostropheCMS versions prior to 4.29.0 Description The password reset flow in the resetRequest route of the modules/@apostrophecms/login/index.js component constructs the reset URL using req.hostname. When apos.baseUrl is not explicitly...

Vvveb 安全漏洞

Vvveb is a powerful and easy-to-use CMS developed by Givan’s individual developers. It is used to build websites, blogs, or e-commerce stores. Versions of Vvveb prior to 1.0.8.3 contained security vulnerabilities. These vulnerabilities stemmed from the Base::init function being repeatedly called ...

WARD: Adversarially Robust Defense of Web Agents against Prompt Injections

Web agents can autonomously complete online tasks by interacting with websites, but their exposure to open web environments makes them vulnerable to prompt injection attacks embedded in HTML content or visual interfaces. Existing guard models still suffer from limited generalization to unseen...

PT-2026-40943

Vvveb before 1.0.8.3 contains an uncontrolled recursion vulnerability in the admin controller dispatch cycle where Base::init repeatedly invokes permission on error handlers, causing infinite recursion until PHP memory limits are exhausted. Attackers can send sustained requests to forbidden admin...