CVE-2013-4306

Name: CVE-2013-4306
Creator: NVD / NIST
Published: 2013-10-11T21:55:44.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.90%

Last modified Jun 16, 2026

CVE-2013-4306 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.90%

54.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	>= 1.19.0, < 1.19.8
Mediawiki	Mediawiki	>= 1.20.0, < 1.20.7
Mediawiki	Mediawiki	>= 1.21.0, < 1.21.2

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.htmlPatch
http://osvdb.org/96908Broken Link
http://seclists.org/oss-sec/2013/q3/553Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/62210Third Party Advisory, VDB Entry
https://bugzilla.wikimedia.org/show_bug.cgi?id=45019Issue Tracking, Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/86893VDB Entry
https://git.wikimedia.org/commit/mediawiki%2Fextensions%2FCheckUser.git/99ad25d066ce6111e798427cba7f21526827f651Patch
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.htmlPatch
http://osvdb.org/96908Broken Link
http://seclists.org/oss-sec/2013/q3/553Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/62210Third Party Advisory, VDB Entry
https://bugzilla.wikimedia.org/show_bug.cgi?id=45019Issue Tracking, Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/86893VDB Entry
https://git.wikimedia.org/commit/mediawiki%2Fextensions%2FCheckUser.git/99ad25d066ce6111e798427cba7f21526827f651Patch

Timeline

Published: Oct 11, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4306?

How severe is CVE-2013-4306?

Severity scoring for CVE-2013-4306 is pending analysis. The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4306?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4306?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST