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CVE-2012-4205

24
FAUCET Score

CVE-2012-4205 is a cross-site request forgery (CSRF) and information disclosure vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to 17.0/2.14 respectively. The vulnerability arises because XMLHttpRequest objects created within sandboxes are incorrectly assigned the system principal instead of the sandbox principal, allowing remote attackers to leverage sandboxed add-ons. With a CVSS score of 6.8 (Medium), this vulnerability has a network attack vector, medium attack complexity, and potential impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.14CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:*:*:*:*
11.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 49th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-4205Moderate

Mozilla: XMLHttpRequest inherits incorrect principal within sandbox (MFSA 2012-97)

Nov 20, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-11/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2013-01/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00090.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00092.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00093.html
Mailing ListThird Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
secunia.com / advisories/51369
Broken Link
secunia.com / advisories/51370
Broken Link
secunia.com / advisories/51381
Broken Link
secunia.com / advisories/51434
Broken Link
secunia.com / advisories/51439
Broken Link
secunia.com / advisories/51440
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/80175
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16965
Third Party Advisory
mozilla.org / security/announce/2012/mfsa2012-97.html
Vendor Advisory
securityfocus.com / bid/56621
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1636-1
Third Party Advisory
ubuntu.com / usn/USN-1638-1
Third Party Advisory
ubuntu.com / usn/USN-1638-2
Third Party Advisory
ubuntu.com / usn/USN-1638-3
Third Party Advisory