CVE-2020-27957

MediumCVSS 5.4/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://gerrit.wikimedia.org/r/q/I497d2076038f75c9eb77e0e250f2af56f5bd2bfcPatch, Vendor Advisory
https://phabricator.wikimedia.org/T266400Exploit, Vendor Advisory
https://gerrit.wikimedia.org/r/q/I497d2076038f75c9eb77e0e250f2af56f5bd2bfcPatch, Vendor Advisory
https://phabricator.wikimedia.org/T266400Exploit, Vendor Advisory

Timeline

Published: Oct 28, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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