CVE-2011-4361

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory debian.org Vendor Advisory wikimedia.org Vendor Advisory wikimedia.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html mailing list patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=758171 issue tracking third party advisory
http://openwall.com/lists/oss-security/2011/11/29/6 third party advisory mailing list
https://bugzilla.wikimedia.org/show_bug.cgi?id=32616 issue tracking patch vendor advisory
http://openwall.com/lists/oss-security/2011/11/29/12 third party advisory mailing list
http://www.debian.org/security/2011/dsa-2366 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-4361?
CVE-2011-4361 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4361?
To fix CVE-2011-4361, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4361 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-4361 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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