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CVE-2012-5391

22
FAUCET Score

CVE-2012-5391 describes a session fixation vulnerability in MediaWiki versions prior to 1.18.6, 1.19.3, and 1.20.1, specifically within the Special:UserLogin component. This flaw allows remote attackers to hijack web sessions by manipulating the session_id. With a CVSS score of 6.8, this vulnerability is considered medium severity, requiring medium attack complexity but potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.18.5CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
1.18CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.18:*:*:*:*:*:*:*
1.18CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.18:beta_1:*:*:*:*:*:*
1.18.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.18.0:*:*:*:*:*:*:*
1.18.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.18.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 69th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / pipermail/package-announce/2013-February/098975.html
lists.fedoraproject.org / pipermail/package-announce/2013-March/100843.html
lists.fedoraproject.org / pipermail/package-announce/2013-March/100845.html
lists.wikimedia.org / pipermail/mediawiki-announce/2012-November/000122.html
Vendor Advisory
bugzilla.wikimedia.org / show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/83008