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.
References (6)
Core 6
Core References
Patch, Vendor Advisory mailing-list
x_refsource_mlist
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=758171
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2011/11/29/6
Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.wikimedia.org/show_bug.cgi?id=32616
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2011/11/29/12
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2011/dsa-2366
Scores
EPSS
0.0018
EPSS Percentile
38.6%
Details
CWE
CWE-276
Status
published
Products (3)
debian/debian_linux
5.0
debian/debian_linux
6.0
mediawiki/mediawiki
< 1.17.1
Published
Jan 08, 2012
Tracked Since
Feb 18, 2026