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. A possible 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 where the "math", "mtext", "table", and "style" elements are allowed and either either "mglyph" or "malignmark" are allowed. This vulnerability is fixed in 1.6.1.

Classification

CVE ID: CVE-2024-53988

CVSS Base Severity: LOW

CVSS Base Score: 2.3

Affected Products

Vendor: rails

Product: rails-html-sanitizer

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.44% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cfjx-w229-hgx5
https://github.com/rails/rails-html-sanitizer/commit/a0a3e8b76b696446ffc6bffcff3bc7b7c6393c72

Timeline