{"id":"CVE-2012-1858","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-1858","generatedAt":"2026-11-05T08:21:43.757Z","title":"The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9, Communicator 2007 R2, and Lync 2010 and 2010 Attendee does not properly handle event attributes and script, which makes it easier for remote attackers to conduct…","description":"The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9, Communicator 2007 R2, and Lync 2010 and 2010 Attendee does not properly handle event attributes and script, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted HTML document, aka \"HTML Sanitization Vulnerability.\"","published":"2012-06-12T22:55:02.000Z","lastModified":"2026-06-16T23:40:27.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N"},"cwe":["CWE-200"],"affected":["microsoft/lync","microsoft/office communicator","microsoft/internet explorer"],"epss":{"score":0.22024,"percentile":0.97671,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2012-07-12","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":19777,"kind":"exploit","title":"Microsoft Internet Explorer 9 / SharePoint / Lync - toStaticHTML HTML Sanitizing Bypass (MS12-037/MS12-039/MS12-050)","url":"https://www.exploit-db.com/exploits/19777","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/19777.txt","file":"exploits/windows/dos/19777.txt","published":"2012-07-12","added":"2012-07-12","updated":"2012-07-12","author":"Adi Cohen","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2012-1858","OSVDB-82861","MS12-037","MS12-050","MS12-039"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 22.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.us-cert.gov/cas/techalerts/TA12-164A.html","tags":["US Government Resource"],"source":"secure@microsoft.com"},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-192A.html","tags":["US Government Resource"],"source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050","source":"secure@microsoft.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530","source":"secure@microsoft.com"},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-164A.html","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-192A.html","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-1858","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."}