CVE-2011-1587

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.4, when Internet Explorer 6 or earlier is used, allows remote attackers to inject arbitrary web script or HTML via an uploaded file accessed with a dangerous extension such as .html located before a ? (question mark) in a query string, in conjunction with a modified URI path that has a %2E sequence in place of the . (dot) character. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1578.

• CWE-79

• http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000097.htmlPatch, Vendor Advisory
• http://openwall.com/lists/oss-security/2011/04/18/5Patch
• http://www.debian.org/security/2011/dsa-2366
• https://bugzilla.redhat.com/show_bug.cgi?id=696360Patch
• http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000097.htmlPatch, Vendor Advisory
• http://openwall.com/lists/oss-security/2011/04/18/5Patch
• http://www.debian.org/security/2011/dsa-2366
• https://bugzilla.redhat.com/show_bug.cgi?id=696360Patch

Published

Apr 27, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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