Description
The sanitize_css method in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 does not properly handle \n (newline) characters, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences.
Remediation
References
Related Vulnerabilities
WordPress Plugin Seriously Simple Podcasting Cross-Site Request Forgery (2.16.0)
WordPress Plugin Free Live Chat Support Cross-Site Request Forgery (1.0.11)
Squid Incorrect Conversion between Numeric Types Vulnerability (CVE-2023-46848)
WordPress Plugin AIT Themes-CSV Import/Export Arbitrary File Upload (3.0.3)