CVE-2020-27957

MEDIUM

MediaWiki < 1.35 - Stored Cross-Site Scripting in RandomGameUnit Extension

Title source: llm
STIX 2.1

Description

The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could be manipulated to generate stored XSS within the RandomGameUnit extension.

References (2)

Core 2
Core References
Exploit, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T266400

Scores

CVSS v3 5.4
EPSS 0.0032
EPSS Percentile 54.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
mediawiki/mediawiki < 1.35
Published Oct 28, 2020
Tracked Since Feb 18, 2026