Description
The sanitize helper 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 encoded : (colon) characters in URLs, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted scheme name, as demonstrated by including a : sequence.
Remediation
References
Related Vulnerabilities
WordPress Plugin W3SCloud Contact Form 7 to Zoho CRM Cross-Site Scripting (1.1.2)
WordPress Plugin YITH Advanced Refund System for WooCommerce Security Bypass (1.0.10)
OpenSSL Missing Encryption of Sensitive Data Vulnerability (CVE-2019-1547)
SharePoint Improper Input Validation Vulnerability (CVE-2009-3830)
WordPress Plugin wordpress vertical image slider Multiple Vulnerabilities (1.0)