CVE-2026-100370 DOMSanitizer - Incomplete data: URL Sanitization in DOMSanitizer::isDangerousUrl() Allows Base64-Encoded Payloads to Bypass href and xlink:href Validation

DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.15, the isDangerousUrl method is responsible for rejecting dangerous URL values in the href and xlink:href attributes. The weakness is that "javascript:" is rejected as a scheme, while "data:" is rejected only when the...

EUVD-2026-88477

DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.15, the isDangerousUrl method is responsible for rejecting dangerous URL values in the href and xlink:href attributes. The weakness is that "javascript:" is rejected as a scheme, while "data:" is rejected only when the...

CVE-2026-100370

The DOMSanitizer library for PHP 7.3+ is vulnerable to an input-validation defect in its isDangerousUrl() method prior to version 1.0.15 . While the sanitizer correctly rejects the "javascript:" scheme, it only rejects the "data:" scheme if the literal substring "onload" is present. This allows a...

CVE-2026-5160: Improper Neutralization of Input During Web Page Generation

Versions of the package github.com/yuin/goldmark/renderer/html before 1.7.17 are vulnerable to Cross-site Scripting XSS due to improper ordering of URL validation and normalization. The renderer validates link destinations using a prefix-based check IsDangerousURL before resolving HTML entities...