Mozilla: X-Frame-Options header ignored when duplicated (MFSA 2012-51)
Published Jul 18, 2012
4.3
MEDIUMCVSS 2.0
EPSS 2.12%
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.
Affected products
No data.
Configuration 1
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0.1
- 5.0
- 5.0.1
- 6.0
- 6.0.1
- 6.0.2
- 7.0
- 7.0.1
- 8.0
- 8.0.1
- 9.0
- 9.0.1
- 11.0
- 12.0
- 12.0
- 13.0
Configuration 2
Configuration 3
- 5.0
- 6.0
- 6.0.1
- 6.0.2
- 7.0
- 7.0.1
- 8.0
- 9.0
- 9.0.1
- 10.0
- 10.0.1
- 10.0.2
- 10.0.3
- 10.0.4
- 11.0
- 12.0
- 13.0
Configuration 4
- 10.0
- 10.0.1
- 10.0.2
- 10.0.3
- 10.0.4
- 10.0.5
Configuration 5
- ≤ 2.10
- 1.0
- 1.0
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.1
- 1.1
- 1.1
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.1.10
- 1.1.11
- 1.1.12
- 1.1.13
- 1.1.14
- 1.1.15
- 1.1.16
- 1.1.17
- 1.1.18
- 1.1.19
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.8
- 2.0.9
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
No data.
Red Hat Enterprise Linux 5
firefox-0:10.0.6-1.el5_8
Fixed · RHSA-2012:1088
Red Hat Enterprise Linux 5
thunderbird-0:10.0.6-1.el5_8
Fixed · RHSA-2012:1089
Red Hat Enterprise Linux 5
xulrunner-0:10.0.6-2.el5_8
Fixed · RHSA-2012:1088
Red Hat Enterprise Linux 6
firefox-0:10.0.6-1.el6_3
Fixed · RHSA-2012:1088
Red Hat Enterprise Linux 6
thunderbird-0:10.0.6-1.el6_3
Fixed · RHSA-2012:1089
Red Hat Enterprise Linux 6
xulrunner-0:10.0.6-1.el6_3
Fixed · RHSA-2012:1088
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:10.0.6-1.el5_8 | Fixed | RHSA-2012:1088 |
| Red Hat Enterprise Linux 5 | thunderbird-0:10.0.6-1.el5_8 | Fixed | RHSA-2012:1089 |
| Red Hat Enterprise Linux 5 | xulrunner-0:10.0.6-2.el5_8 | Fixed | RHSA-2012:1088 |
| Red Hat Enterprise Linux 6 | firefox-0:10.0.6-1.el6_3 | Fixed | RHSA-2012:1088 |
| Red Hat Enterprise Linux 6 | thunderbird-0:10.0.6-1.el6_3 | Fixed | RHSA-2012:1089 |
| Red Hat Enterprise Linux 6 | xulrunner-0:10.0.6-1.el6_3 | Fixed | RHSA-2012:1088 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.12% (0.02118) | 81.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.13% (0.02126) | 79.46th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.17% (0.01172) | 76.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.54% (0.03543) | 79.23th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.17% (0.01172) | 77.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.46% (0.00458) | 76.12th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.46% (0.00458) | 74.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00458) | 71.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.93% (0.03932) | 85.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.93% (0.03932) | 84.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.93% (0.03932) | 67.70th | v2 (v2022.01.01) |
References (28)
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00016.html vendor-advisoryx_refsource_SUSE
- http://osvdb.org/84003 vdb-entryx_refsource_OSVDB
- http://rhn.redhat.com/errata/RHSA-2012-1088.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/49965 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49968 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49972 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49977 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49979 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49992 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49993 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/49994 third-party-advisoryx_refsource_SECUNIA
- http://www.mozilla.org/security/announce/2012/mfsa2012-51.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/54584 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1027256 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id?1027257 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id?1027258 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-1509-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1509-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1510-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-1961 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=761655 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=840214 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-1961
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16993 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2012-1961
Change history (0)
No recorded changes yet.