CVE-2020-35622

MEDIUM

MediaWiki GlobalUsage Extension < 1.35.1 - Cross-Site Scripting via Unsafe WikiMap Link Generation

Title source: llm
STIX 2.1

Description

An issue was discovered in the GlobalUsage extension for MediaWiki through 1.35.1. SpecialGlobalUsage.php calls WikiMap::makeForeignLink unsafely. The $page variable within the formatItem function was not being properly escaped, allowing for XSS under certain conditions.

References (2)

Core 2
Core References
Third Party Advisory x_refsource_misc
https://phabricator.wikimedia.org/T268341
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/GlobalUsage/+/646744

Scores

CVSS v3 6.1
EPSS 0.0017
EPSS Percentile 38.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
mediawiki/mediawiki < 1.35.1
Published Dec 21, 2020
Tracked Since Feb 18, 2026