{"id":"CVE-2011-1765","aliases":["EUVD-2011-1764","GHSA-wfr3-766x-cfv9"],"status":"published","title":"Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.5, when Internet Explorer 6 or...","description":"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.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02098,"percentile":0.81805,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2011-05-23T22:00:00Z","modified":"2026-06-16T23:29:59Z","products":[{"vendor":"mediawiki","product":"mediawiki"}],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060496.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=702512","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/44684","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.securityfocus.com/bid/47722","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-May/000098.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"https://bugzilla.wikimedia.org/show_bug.cgi?id=28534","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060435.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060507.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1765"},{"url":"https://github.com/advisories/GHSA-wfr3-766x-cfv9"}],"sources":{"cve":[{"id":"CVE-2011-1765","description":"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.","status":"published","published":"2011-05-23T22:00:00Z","modified":"2024-08-06T22:37:25.89Z","updated_at":"2026-11-02T14:35:38.321377Z"}],"euvd":[{"id":"EUVD-2011-1764","description":"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.","status":"published","published":"2011-05-23T22:00:00Z","modified":"2024-08-06T22:37:25Z","updated_at":"2026-11-03T01:55:55.207376Z"}],"ghsa":[{"id":"GHSA-wfr3-766x-cfv9","title":"Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.5, when Internet Explorer 6 or...","description":"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.","status":"published","published":"2022-05-13T01:07:55Z","modified":"2023-02-01T05:03:11Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:50:01.590535Z"}],"nvd":[{"id":"CVE-2011-1765","description":"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.","status":"published","published":"2011-05-23T22:55:01.317Z","modified":"2026-06-16T23:29:59.08Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:02:08.47516Z"}]}}