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.

Remediation

References

CVE-2011-4361

Related Vulnerabilities

IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-20352)

WordPress Plugin Easy Updates Manager Privilege Escalation (8.0.4)

Moodle Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2017-2578)

XWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2023-29206)

WordPress Plugin Users Ultra Membership Arbitrary File Upload (1.5.58)

Severity

Medium

Classification

CVE-2011-4361 CWE-276

Tags

Missing Update Known Vulnerabilities