CVE-2012-5391

medium

Published 2014-06-02 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

6.8

Description

Session fixation vulnerability in Special:UserLogin in MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the session_id.

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.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1:1.19.3-1`
sid	Fixed	`1:1.19.3-1`
forky	Fixed	`1:1.19.3-1`
bullseye	Fixed	`1:1.19.3-1`
bookworm	Fixed	`1:1.19.3-1`

Application impact

Vendor	Product	Versions
mediawiki	mediawiki	`{"endIncluding":"1.18.5"}`
mediawiki	mediawiki	`1.18`
mediawiki	mediawiki	`1.18.0`
mediawiki	mediawiki	`1.18.1`
mediawiki	mediawiki	`1.18.2`
mediawiki	mediawiki	`1.18.3`
mediawiki	mediawiki	`1.18.4`
mediawiki	mediawiki	`1.19`
mediawiki	mediawiki	`1.19.1`
mediawiki	mediawiki	`1.19.2`
mediawiki	mediawiki	`1.20`

References

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

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