CVE-2013-4306 json
Cross-site request forgery (CSRF) vulnerability in api/ApiQueryCheckUser.php in the CheckUser extension for MediaWiki, possibly Checkuser b…
published 2013-10-11 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4200
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
Cross-site request forgery (CSRF) vulnerability in api/ApiQueryCheckUser.php in the CheckUser extension for MediaWiki, possibly Checkuser before 2.3, allows remote attackers to hijack the authentication of arbitrary users for requests that "perform sensitive write actions" via unspecified vectors.
Patch / fix
- mediawiki mediawiki 1.19.8, 1.20.7, 1.21.2
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
git.wikimedia.org
/commit/mediawiki%2Fextensions%2FCheckUser.git/99ad25d066ce6111e798427cba7f21526827f651
patch
-
lists.wikimedia.org
/pipermail/mediawiki-announce/2013-September/000133.html
mailing-list, patch
-
bugzilla.wikimedia.org
/show_bug.cgi?id=45019
issue-tracking, patch
-
seclists.org
/oss-sec/2013/q3/553
mailing-list, third-party-advisory
-
securityfocus.com
/bid/62210
vdb-entry, third-party-advisory
-
osvdb.org
/96908
vdb-entry, broken-link
-
exchange.xforce.ibmcloud.com
/vulnerabilities/86893
vdb-entry
Sources
- CVE List CVE-2013-4306
- NVD CVE-2013-4306
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.