Vigil@nce - MediaWiki: Cross Site Scripting via User-generated CSS Selectors
June 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian.
Severity: 2/4.
Consequences: client access/rights.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 03/04/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a Cross Site Scripting via User-generated
CSS Selectors of MediaWiki, in order to run JavaScript code in the
context of the web site.
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