Unauthenticated Information Disclosure in MediaWiki before 1.17.1

CVE-2011-4361 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

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.

Learn more about our Web Application Penetration Testing UK.