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Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package tfm-rubygem-rails-html-sanitizer  (opens in a new tab)

Threat Intelligence

EPSS
1.06% (64th percentile)

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  • Snyk IDSNYK-RHEL10-TFMRUBYGEMRAILSHTMLSANITIZER-13512798
  • published10 Oct 2025
  • disclosed13 Dec 2022
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Introduced: 13 Dec 2022

CVE-2022-23519  (opens in a new tab)
CWE-79  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tfm-rubygem-rails-html-sanitizer package and not the tfm-rubygem-rails-html-sanitizer package as distributed by RHEL.

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.