CVE-2011-1765
Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.5, 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 .shtml at the end of the 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 and CVE-2011-1587.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 2.1% (82th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1764)
- Published
- May 23, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1764 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
and 91 more…
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060435.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060496.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060507.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-May/000098.html(Patch)
- http://secunia.com/advisories/44684
- http://www.securityfocus.com/bid/47722
- https://bugzilla.redhat.com/show_bug.cgi?id=702512(Patch)
- https://bugzilla.wikimedia.org/show_bug.cgi?id=28534(Exploit)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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