Description
Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
Remediation
References
Related Vulnerabilities
OpenSSL Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2017-3736)
MediaWiki Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2015-8624)
phpMyAdmin Permissions, Privileges, and Access Controls Vulnerability (CVE-2014-4987)
Next.js Uncontrolled Recursion Vulnerability (CVE-2024-47831)
Atlassian Jira Improper Authentication Vulnerability (CVE-2021-41312)