CVE-2011-4361

Name: CVE-2011-4361
Creator: NVD / NIST
Published: 2012-01-08T11:55:19.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.62%

Last modified Jun 16, 2026

CVE-2011-4361 is a vulnerability of currently unknown severity. MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.. EPSS estimates a 2.62% chance of exploitation in the next 30 days.

Description

MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.

Metrics

EPSS Probability

2.62%

83.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.17.1
Debian	Debian Linux	5.0
Debian	Debian Linux	6.0

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.htmlPatch, Vendor Advisory
http://openwall.com/lists/oss-security/2011/11/29/12Mailing List, Third Party Advisory
http://openwall.com/lists/oss-security/2011/11/29/6Mailing List, Third Party Advisory
http://www.debian.org/security/2011/dsa-2366Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=758171Issue Tracking, Third Party Advisory
https://bugzilla.wikimedia.org/show_bug.cgi?id=32616Issue Tracking, Patch, Vendor Advisory
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.htmlPatch, Vendor Advisory
http://openwall.com/lists/oss-security/2011/11/29/12Mailing List, Third Party Advisory
http://openwall.com/lists/oss-security/2011/11/29/6Mailing List, Third Party Advisory
http://www.debian.org/security/2011/dsa-2366Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=758171Issue Tracking, Third Party Advisory
https://bugzilla.wikimedia.org/show_bug.cgi?id=32616Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Jan 8, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-4361?

How severe is CVE-2011-4361?

Severity scoring for CVE-2011-4361 is pending analysis. The EPSS model estimates a 2.62% probability of exploitation in the next 30 days.

How do I fix CVE-2011-4361?

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-2011-4361?

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

Scan your code now

Source: NVD / NIST