CVE-2013-4304

high

Published 2014-01-26 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

7.5

Description

The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

Vendor	Product	Versions
brion_vibber	centralauth_extension	`-`
mediawiki	mediawiki	`1.19`
mediawiki	mediawiki	`1.19.0`
mediawiki	mediawiki	`1.19.1`
mediawiki	mediawiki	`1.19.2`
mediawiki	mediawiki	`1.19.3`
mediawiki	mediawiki	`1.19.4`
mediawiki	mediawiki	`1.19.5`
mediawiki	mediawiki	`1.19.6`
mediawiki	mediawiki	`1.19.7`
mediawiki	mediawiki	`1.20`
mediawiki	mediawiki	`1.20.1`
mediawiki	mediawiki	`1.20.2`
mediawiki	mediawiki	`1.20.3`
mediawiki	mediawiki	`1.20.4`
mediawiki	mediawiki	`1.20.5`
mediawiki	mediawiki	`1.20.6`
mediawiki	mediawiki	`1.21`
mediawiki	mediawiki	`1.21.1`

References

CWEs

CWE-287

Community-verified mitigations for this CVE will appear above when contributors publish them.

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