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. Applications with non-default allowed tags that included SVG use or feImage elements could therefore permit external references; a same-origin external SVG referenced by use could execute scripts in the sanitized document's context, while feImage could load external images for tracking. Applications using the default allowed tags are not affected. This issue is fixed in version 1.7.1.
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Thu, 13 Aug 2026 19:30:00 +0000
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Thu, 13 Aug 2026 18:15:00 +0000
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| Description | 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. Applications with non-default allowed tags that included SVG use or feImage elements could therefore permit external references; a same-origin external SVG referenced by use could execute scripts in the sanitized document's context, while feImage could load external images for tracking. Applications using the default allowed tags are not affected. This issue is fixed in version 1.7.1. | |
| Title | rails-html-sanitizer: Possible XSS vulnerability with certain configurations | |
| Weaknesses | CWE-79 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-13T18:35:10.270Z
Reserved: 2026-08-13T14:04:09.604Z
Link: CVE-2026-73648
Updated: 2026-08-13T18:34:22.614Z
Status : Received
Published: 2026-08-13T18:18:20.620
Modified: 2026-08-13T19:17:37.707
Link: CVE-2026-73648
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OpenCVE Enrichment
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