CVE-2012-1966
Mozilla Firefox 4.x through 13.0 and Firefox ESR 10.x before 10.0.6 do not have the same context-menu restrictions for data: URLs as for javascript: URLs, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.
Does this matter?
Lower severity and a low EPSS score (2.19%). Track it; it rarely justifies an emergency change on its own.
Description
Mozilla Firefox 4.x through 13.0 and Firefox ESR 10.x before 10.0.6 do not have the same context-menu restrictions for data: URLs as for javascript: URLs, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
- EPSS
- 2.19% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- mozilla/firefox
- Source
- cve@mitre.org
EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html
- http://osvdb.org/84009
- http://rhn.redhat.com/errata/RHSA-2012-1088.html
- http://secunia.com/advisories/49964
- http://secunia.com/advisories/49965
- http://secunia.com/advisories/49972
- http://secunia.com/advisories/49979
- http://secunia.com/advisories/49992
- http://www.debian.org/security/2012/dsa-2514
- http://www.mozilla.org/security/announce/2012/mfsa2012-46.htmlVendor Advisory
- http://www.securityfocus.com/bid/54577
- http://www.securitytracker.com/id?1027256
- http://www.ubuntu.com/usn/USN-1509-1
- http://www.ubuntu.com/usn/USN-1509-2
- https://bugzilla.mozilla.org/show_bug.cgi?id=734076
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17037
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html
- http://osvdb.org/84009
- http://rhn.redhat.com/errata/RHSA-2012-1088.html
- http://secunia.com/advisories/49964
- http://secunia.com/advisories/49965
- http://secunia.com/advisories/49972
- http://secunia.com/advisories/49979
- http://secunia.com/advisories/49992
- http://www.debian.org/security/2012/dsa-2514
- http://www.mozilla.org/security/announce/2012/mfsa2012-46.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.