Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and…

Description

Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 do not properly handle duplicate values in X-Frame-Options headers, which makes it easier for remote attackers to conduct clickjacking attacks via a FRAME element referencing a web site that produces these duplicate values.

Scores

EPSS (exploitation in 30 days)

2.1% · top 18% of all CVEs (3 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

• n/a
• CWE-20 (opens in a new tab)Other CVEs with CWE-20

Affected products

• n/a

  • affected n/a

References (24)

• 49977 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 49992 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 54584 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 1027256 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• RHSA-2012:1088 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• USN-1509-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 1027258 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 49979 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=761655 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU-2012:0895 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-1510-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• http://www.mozilla.org/security/announce/2012/mfsa2012-51.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 49965 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 1027257 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• openSUSE-SU-2012:0917 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2012:0896 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 49994 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• openSUSE-SU-2012:0899 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 49968 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• USN-1509-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 84003 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 49993 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 49972 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:16993 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2012-1961](https://trackcve.app/badge/CVE-2012-1961.svg)](https://trackcve.app/cve/CVE-2012-1961)

Record last updated 6 Aug 2024, 19:17 UTC.