Description
An issue was discovered in SiteLinksView.php in Wikibase in MediaWiki through 1.39.3. There is XSS via a crafted badge title attribute. This is also related to lack of escaping in wbTemplate (from resources/wikibase/templates.js) for quotes (which can be in a title attribute).
Remediation
References
Related Vulnerabilities
WordPress Plugin NEX-Forms-The Ultimate WordPress Form Builder Security Bypass (7.8.7)
PHP Other Vulnerability (CVE-2002-1954)
WordPress Plugin Customer Service Software & Support Ticket System Cross-Site Scripting (5.10.3)
MySQL Incorrect Authorization Vulnerability (CVE-2025-50085)
Apache Traffic Server Out-of-bounds Write Vulnerability (CVE-2026-58184)