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Vulnerability · Published Dec 2, 2024 · Assigned by GitHub_M

CVE-2024-53985Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0

Low 2.3

In plain English

A low-severity cross-site scripting in rails-html-sanitizer from rails. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.3Low
Exploit odds (30 days)0.6%top 51.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0 and Nokogiri < 1.15.7, or 1.16.x < 1.16.8. The XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags with both "math" and "style" elements or both both "svg" and "style" elements. This vulnerability is fixed in 1.6.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
RubyGemsrails-html-sanitizer1.6.1GHSA-w8gc-x259-rc7x
Ubuntu:22.04:LTSruby-rails-html-sanitizerno fix listedUBUNTU-CVE-2024-53985
Ubuntu:24.04:LTSruby-rails-html-sanitizerno fix listedUBUNTU-CVE-2024-53985
Ubuntu:25.10ruby-rails-html-sanitizerno fix listedUBUNTU-CVE-2024-53985
Ubuntu:26.04:LTSruby-rails-html-sanitizerno fix listedUBUNTU-CVE-2024-53985
Ubuntu:26.10ruby-rails-html-sanitizerno fix listedUBUNTU-CVE-2024-53985

Affected products (as reported)

VendorProductVersions
rails rails-html-sanitizer >= 1.6.0, < 1.6.1

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References