Description Lack of output escaping leads to a XSS vector in the multilingual associations component. Remediation References CVE-2026-21631 Related Vulnerabilities MediaWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2013-6452) PHP Other Vulnerability (CVE-2015-4599) Drupal Improper Access Control Vulnerability (CVE-2020-13677) Joomla CVE-2009-3945 Vulnerability (CVE-2009-3945) WordPress Plugin Htaccess by BestWebSoft Cross-Site Request Forgery (1.8.1) Severity Medium Classification CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities CWE-707 CVE-2026-21631