CVE-2012-5391

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-06-02 · updated 2026-06-16

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.

Affected products

Wikimedia Foundation MediaWiki: through 1.18.5; 1.18, 1.18-beta_1, 1.18.0, 1.18.0-rc1, 1.18.1, 1.18.2 (+8)

References

http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098975.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-March/100843.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-March/100845.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-November/000122.html
https://bugzilla.wikimedia.org/show_bug.cgi?id=40995
https://exchange.xforce.ibmcloud.com/vulnerabilities/83008
http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098975.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-March/100843.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-March/100845.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-November/000122.html
https://bugzilla.wikimedia.org/show_bug.cgi?id=40995
https://exchange.xforce.ibmcloud.com/vulnerabilities/83008

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