Description
An issue was discovered in the CampaignEvents extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. The Special:EventDetails page allows XSS via the x-xss language setting for internationalization (i18n).
Remediation
References
Related Vulnerabilities
IBM RTC Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-4962)
WordPress Plugin Video Comments Webcam Recorder Cross-Site Scripting (1.55)
WordPress Plugin Contact Form 7 Security Bypass (4.1)
WordPress Plugin Responsive Owl Carousel for Elementor Local File Inclusion (1.2.0)