CVE-2026-73648

A flaw was found in rails-html-sanitizer, a component responsible for sanitizing HTML fragments in Rails applications. This vulnerability allows a remote attacker to perform Cross-Site Scripting XSS by exploiting improper sanitization of SVG Scalable Vector Graphics reference elements. The...

CVE-2026-73648 rails-html-sanitizer: Possible XSS vulnerability with certain configurations

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

EUVD-2026-58191

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

CVE-2026-73648

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

PT-2026-71724

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVG ALLOW LOCAL HREF only when they used xlink:href, even though browsers also accept the plain href attribute...

Possible XSS vulnerability with certain configurations of rails-html-sanitizer

Summary There is a possible cross-site scripting vulnerability in rails-html-sanitizer when the sanitizer is configured to allow an SVG reference element such as . See related GHSA-9wjq-cp2p-hrgf in Loofah, whose SVG local-reference logic rails-html-sanitizer mirrors. Impact...