Rapid7 Vulnerability & Exploit Database

MediaWiki: Improper Encoding or Escaping of Output (CVE-2020-10960)

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MediaWiki: Improper Encoding or Escaping of Output (CVE-2020-10960)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
04/03/2020
Created
04/09/2020
Added
04/08/2020
Modified
04/08/2020

Description

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).

Solution(s)

  • mediawiki-upgrade-1_34_1

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