{"id":"CVE-2010-1585","url":"https://www.cyber-defence.io/tools/cve/CVE-2010-1585","generatedAt":"2026-10-27T20:40:43.769Z","title":"The nsIScriptableUnescapeHTML.parseFragment method in the ParanoidFragmentSink protection mechanism in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1.8, and SeaMonkey before 2.0.12 does not properly sanitize HTML in a…","description":"The nsIScriptableUnescapeHTML.parseFragment method in the ParanoidFragmentSink protection mechanism in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1.8, and SeaMonkey before 2.0.12 does not properly sanitize HTML in a chrome document, which makes it easier for remote attackers to execute arbitrary JavaScript with chrome privileges via a javascript: URI in input to an extension, as demonstrated by a javascript:alert sequence in (1) the HREF attribute of an A element or (2) the ACTION attribute of a FORM element.","published":"2010-04-28T22:30:01.000Z","lastModified":"2026-06-16T23:18:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":9.3,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C"},"cwe":["CWE-20"],"affected":["mozilla/firefox","mozilla/seamonkey","mozilla/thunderbird"],"epss":{"score":0.04471,"percentile":0.91386,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://downloads.avaya.com/css/P8/documents/100133195","source":"cve@mitre.org"},{"url":"http://wizzrss.blat.co.za/2009/11/17/so-much-for-nsiscriptableunescapehtmlparsefragment/","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:041","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:042","source":"cve@mitre.org"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-08.html","source":"cve@mitre.org"},{"url":"http://www.security-assessment.com/files/whitepapers/Cross_Context_Scripting_with_Firefox.pdf","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/510883/100/0/threaded","source":"cve@mitre.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=562547","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12532","source":"cve@mitre.org"},{"url":"http://downloads.avaya.com/css/P8/documents/100133195","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://wizzrss.blat.co.za/2009/11/17/so-much-for-nsiscriptableunescapehtmlparsefragment/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:041","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:042","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-08.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.security-assessment.com/files/whitepapers/Cross_Context_Scripting_with_Firefox.pdf","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/510883/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=562547","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12532","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2010-1585","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}