CVE-2013-4306

medium
Published 2013-10-11 · Modified 2026-04-29
CVSS v3
CVSS v2
6.8
VIR risk
6.8

Description

Cross-site request forgery (CSRF) vulnerability in api/ApiQueryCheckUser.php in the CheckUser extension for MediaWiki, possibly Checkuser before 2.3, allows remote attackers to hijack the authentication of arbitrary users for requests that "perform sensitive write actions" via unspecified vectors.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://git.wikimedia.org/commit/mediawiki%2Fextensions%2FCheckUser.git/99ad25d066ce6111e798427cba7f21526827f651

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://bugzilla.wikimedia.org/show_bug.cgi?id=45019

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html

Application impact

VendorProductVersionsFixed
mediawikimediawiki{"startIncluding":"1.19.0","endExcluding":"1.19.8"}1.19.8

References

CWEs

CWE-352

Verify integrity in audit chain (admin only). AS-IS.