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CVE-2012-3985
Mozilla Firefox before 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 do not properly implement the HTML5 Same Origin Policy,…
Medium4.3EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Mozilla Firefox before 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 do not properly implement the HTML5 Same Origin Policy, which allows remote attackers to conduct cross-site scripting (XSS) attacks by leveraging initial-origin access after document.domain has been set.
Timeline
ID reserved
By mitre
- 3 months later
· 3 months later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (8 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
Affected products
n/a
- affected n/a
References (11)
- 50904 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 50984 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 50935 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:16108 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 50856 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 86106 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 50892 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=655649 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.mozilla.org/security/announce/2012/mfsa2012-76.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2012:1351 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-1611-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_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
[](https://cveledger.app/cve/CVE-2012-3985)Record last updated .