DOMPurify ADD_ATTR predicate skips URI validation

Summary DOMPurify allows ADDATTR to be provided as a predicate function via EXTRAELEMENTHANDLING.attributeCheck. When the predicate returns true, isValidAttribute short-circuits the attribute check before URI-safe validation runs. An attacker who supplies a predicate that accepts specific...

Permissive List of Allowed Inputs

Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the ADDATTR predicate function via EXTRAELEMENTHANDLING.attributeCheck. An attacker can inject and execute malicious scripts in the DOM...

PT-2026-63992

Name of the Vulnerable Software and Affected Versions DOMPurify versions prior to 3.3.2 Description A URI validation bypass occurs when ADD ATTR is used as a predicate function through EXTRA ELEMENT HANDLING.attributeCheck. This allows attackers to provide a predicate that accepts specific...

Loofah has improper detection of disallowed URIs via `allowed_uri?`

Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...

CVE-2026-4120

The Info Cards – Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the...

CVE-2026-4120 Info Cards <= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes

The Info Cards – Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the...

CVE-2026-4120: Improper Neutralization of Input During Web Page Generation

The Info Cards – Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the...

CraftCMS vulnerable to reflective XSS via incomplete return URL sanitization

Summary The fix for CVE-2025-35939 in craftcms/cms introduced a striptags call in src/web/User.php to sanitize return URLs before they are stored in the session. However, striptags only removes HTML tags angle brackets -- it does not inspect or filter URL schemes. Payloads like...

GHSA-PMC9-F5QR-2PCR SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS Summary SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string...

Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href

Summary Rack::Directory generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename begins with the javascript: scheme e.g. javascript:alert1, the generated index includes an anchor whose href attribute is exactly...

CVE-2025-71164

Typesetter CMS versions up to and including 5.1 contain a reflected cross-site scripting XSS vulnerability in the Editing component. The images parameter submitted as images in a POST request is reflected into an HTML href attribute without proper context-aware output encoding in...

CVE-2025-71164

Typesetter CMS versions up to and including 5.1 contain a reflected cross-site scripting XSS vulnerability in the Editing component. The images parameter submitted as images in a POST request is reflected into an HTML href attribute without proper context-aware output encoding in...

CVE-2025-71164 Typesetter CMS Reflected XSS via Editing.php

Typesetter CMS versions up to and including 5.1 contain a reflected cross-site scripting XSS vulnerability in the Editing component. The images parameter submitted as images in a POST request is reflected into an HTML href attribute without proper context-aware output encoding in...

EUVD-2026-2437

Typesetter CMS versions up to and including 5.1 contain a reflected cross-site scripting XSS vulnerability in the Editing component. The images parameter submitted as images in a POST request is reflected into an HTML href attribute without proper context-aware output encoding in...

CVE-2025-71164: Improper Neutralization of Input During Web Page Generation

Typesetter CMS versions up to and including 5.1 contain a reflected cross-site scripting XSS vulnerability in the Editing component. The images parameter submitted as images in a POST request is reflected into an HTML href attribute without proper context-aware output encoding in...

PT-2026-2944

Name of the Vulnerable Software and Affected Versions Typesetter CMS versions up to and including 5.1 Description Typesetter CMS versions up to and including 5.1 have a reflected cross-site scripting XSS issue in the Editing component. The images parameter, submitted as images in a POST request, ...

CVE-2024-34343

Nuxt is a free and open-source framework to create full-stack web applications and websites with Vue.js. The navigateTo function attempts to blockthe javascript: protocol, but does not correctly use API's provided by unjs/ufo. This library also contains parsing discrepancies. The function first...

PT-2025-47871

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-52c5-vh7f-26fx. This link is maintained to preserve external references. Original Description Impact The prosemirror to html gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute...

PT-2025-47234

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-52c5-vh7f-26fx. This link is maintained to preserve external references. Original Description Impact The prosemirror to html gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute...

LibreNMS is vulnerable to Reflected-XSS in `report_this` function

Summary Reflected-XSS in reportthis function in librenms/includes/functions.php Details Recently, it was discovered that the reportthis function had improper filtering htmlentities function was incorrectly used in a href environment, which caused the projectissues parameter to trigger an XSS...