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CVE-2015-2940

18
FAUCET Score

CVE-2015-2940 describes a Cross-Site Request Forgery (CSRF) vulnerability within the CheckUser extension for MediaWiki. This flaw allows remote attackers to hijack authenticated user sessions, potentially leading to the retrieval of sensitive user information. While rated with a CVSS score of 6.8 (Medium), indicating a network-based attack with medium complexity and partial impact to confidentiality, integrity, and availability, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:mediawiki:checkuser:-:*:*:*:*:mediawiki:*:*

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
1.10%
Probability of exploitation in next 30 days
EPSS Percentile
62.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0110 is in the 24th percentile among its peer group of 19,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

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.wikimedia.org / pipermail/mediawiki-announce/2015-March/000175.html
PatchVendor Advisory
phabricator.wikimedia.org / T85858
security.gentoo.org / glsa/201510-05
mandriva.com / security/advisories
openwall.com / lists/oss-security/2015/04/01/1
openwall.com / lists/oss-security/2015/04/07/3
securityfocus.com / bid/73477