Unscored severity · published Apr 13, 2015
CVE-2015-2940
Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that…
–
CVSS
1.1%
EPSS
No
On KEV
Description
Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that retrieve sensitive user information via unspecified vectors.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Checkuser · Mediawiki
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-2940
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-2940
www.mandriva.com
http://www.mandriva.com/security/advisories?name=MDVSA-2015:200
www.openwall.com
http://www.openwall.com/lists/oss-security/2015/04/01/1
www.openwall.com
http://www.openwall.com/lists/oss-security/2015/04/07/3
www.securityfocus.com
http://www.securityfocus.com/bid/73477
Patch
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
phabricator.wikimedia.org
https://phabricator.wikimedia.org/T85858
More from Checkuser
8.8
CVE-2025-67478
Wrong E-Mail address composition for usernames with a comma and Umlauts in it like "Döe, Jähn"
7.5
CVE-2026-34090
Suggested investigations: Handle suppressed usernames
6.5
CVE-2019-18611
An issue was discovered in the CheckUser extension through 1.34 for MediaWiki
6.1
CVE-2025-61651
i18n XSS through Special:CheckUser CheckUser helper
6.1
CVE-2025-61648
Stored XSS through system messages in CheckUser
