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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-w8gc-x259-rc7x
Scores
CVSS v3
6.1
EPSS
0.0220
EPSS Percentile
84.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
rubygems/rails-html-sanitizer
1.6.0 - 1.6.1RubyGems
rubyonrails/rails_html_sanitizers
1.6.0
Published
Dec 02, 2024
Tracked Since
Feb 18, 2026