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MediaWiki Improper Encoding or Escaping of Output Vulnerability - CVE-2020-10960 - Vulnerability Database
MediaWiki

MediaWiki Improper Encoding or Escaping of Output Vulnerability - CVE-2020-10960

Medium
Reference: CVE-2020-10960
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2020-10960
Title: MediaWiki Improper Encoding or Escaping of Output Vulnerability
Overview:

In MediaWiki before 1.34.1 users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascading Style Sheets (CSS) selector. There is no known way to exploit this for cross-site scripting (XSS).