CVE-2026-42455

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...

CVE-2026-42455 LinkWarden: Stored XSS via Client-Side Archive Upload (Unsanitized HTML served from same origin)

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...

CVE-2026-42455

CVE-2026-42455 affects Linkwarden (self-hosted, open-source bookmark manager). For versions ≤ 2.14.0, the archive upload endpoint POST /api/v1/archives/[linkId]?format=4 accepts HTML files without sanitizing JavaScript content. When the archive is later retrieved via GET /api/v1/archives/[linkId]...

CVE-2026-42455 LinkWarden: Stored XSS via Client-Side Archive Upload (Unsanitized HTML served from same origin)

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...

EUVD-2026-28872

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...

CVE-2026-42455 LinkWarden: Stored XSS via Client-Side Archive Upload (Unsanitized HTML served from same origin)

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...

MCP Registry vulnerable to stored XSS in catalogue UI via attribute-quote breakout in publisher-controlled `websiteUrl`

Summary The public catalogue UI served at GET / file internal/api/handlers/v0/uiindex.html is vulnerable to stored cross-site scripting via the server.websiteUrl field of any published server.json. Server-side validation in internal/validators/validators.go validateWebsiteURL only checks that the...

PT-2026-39263

Name of the Vulnerable Software and Affected Versions MCP Registry versions prior to 1.7.7 Description The public catalogue UI served at the 'GET /' endpoint is subject to stored cross-site scripting. This occurs via the server.websiteUrl field of published server.json files. The server-side...

PT-2026-39223

Name of the Vulnerable Software and Affected Versions Linkwarden versions prior to 2.14.0 Description The archive upload endpoint "POST /api/v1/archives/linkId?format=4" accepts HTML files without sanitizing JavaScript content. When the archive is accessed via "GET...

CVE-2025-31970

HCL DFXAnalytics is affected by an Insecure Security Header configuration vulnerability where the Content-Security-Policy does not define strict directives for object-src and base-uri, which could allow an attacker to exploit injection vectors such as Cross-Site Scripting XSS...

Security update for webkit2gtk3

This update for webkit2gtk3 fixes the following issues: Update to version 2.52.1. Security issues fixed: CVE-2026-20643: processing maliciously crafted web content may bypass Same Origin Policy bsc1261172. CVE-2026-20664: processing maliciously crafted web content may lead to an unexpected proces...

SUSE-SU-2026:1749-1 Security update for webkit2gtk3

This update for webkit2gtk3 fixes the following issues: Update to version 2.52.1. Security issues fixed: - CVE-2026-20643: processing maliciously crafted web content may bypass Same Origin Policy bsc1261172. - CVE-2026-20664: processing maliciously crafted web content may lead to an unexpected...

webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced

A flaw was found in WebKitGTK. Processing malicious web content may prevent Content Security Policy from being enforced due to improper state management...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the GET /public/api/resources/download endpoint when serving SVG files without a proper Content Security Policy header. An attacker can execute arbitrary JavaScript in the context of users' browsers by...

GHSA-MMPX-JH39-WRV6 FileBrowser Vulnerable to Stored XSS via SVG File in Public Share (Missing CSP Header)

Summary FileBrowser Quantum serves inline SVG files without a Content-Security-Policy header, allowing embedded JavaScript in SVG files to execute when accessed via public share links. Verified on v1.3.0-stable. Affected product - Product: FileBrowser Quantum gtsteffaniak/filebrowser - Verified...

FileBrowser Vulnerable to Stored XSS via SVG File in Public Share (Missing CSP Header)

Summary FileBrowser Quantum serves inline SVG files without a Content-Security-Policy header, allowing embedded JavaScript in SVG files to execute when accessed via public share links. Verified on v1.3.0-stable. Affected product - Product: FileBrowser Quantum gtsteffaniak/filebrowser - Verified...

Weblate vulnerable to XSS via crafted Markdown

Impact The Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes. Patches https://github.com/WeblateOrg/weblate/pull/19259 Workarounds Even though the attacker might be able to inject code into the HTML, the Weblate's strict CSP should...

Cross-site Scripting (XSS)

Overview weblate is an A web-based continuous localization system with tight version control integration Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Markdown renderer used for user comments and other user-provided content due to improper sanitization of...

RHEL 9 : webkit2gtk3 (RHSA-2026:14659)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:14659 advisory. WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform. Security Fixes: webkitgtk: Processing maliciously...

PT-2026-38401

Name of the Vulnerable Software and Affected Versions Weblate versions prior to 5.17.1 Description The Markdown renderer used in user comments and other user-provided content fails to properly sanitize certain attributes, which could allow the injection of code into the HTML. Recommendations Upda...