CVE-2020-12051

HIGH

MediaWiki CentralAuth Extension - Information Disclosure via API Global User Info Query

Title source: llm
STIX 2.1

Description

The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.

References (2)

Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T250594

Scores

CVSS v3 7.5
EPSS 0.0051
EPSS Percentile 66.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

Status published
Products (1)
mediawiki/mediawiki
Published Apr 21, 2020
Tracked Since Feb 18, 2026