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CVE-2009-1311

15
FAUCET Score

CVE-2009-1311 describes a user-assisted information disclosure vulnerability affecting Mozilla Firefox before version 3.0.9 and SeaMonkey before 1.1.17. An attacker could craft a malicious web page with an embedded frame, causing POST data from an outer page to be inadvertently sent to the inner frame's URL during a "SAVEMODE_FILEONLY" save operation. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a partial impact on confidentiality. 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
<= 3.0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 70th percentile among its peer group of 19,958 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

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.0.9-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: seamonkey-0:1.0.9-0.33.el2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.37.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.0.9-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-41.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.0.9-1.el5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2009-1311Low

Firefox POST data sent to wrong site when saving web page with embedded frame

Apr 21, 2009

References

lists.opensuse.org / opensuse-security-announce/2009-05/msg00000.html
rhn.redhat.com / errata/RHSA-2009-0437.html
bugzilla.mozilla.org / show_bug.cgi
Exploit
secunia.com / advisories/34758
secunia.com / advisories/34843
secunia.com / advisories/34844
secunia.com / advisories/34894
secunia.com / advisories/35042
secunia.com / advisories/35065
secunia.com / advisories/35561
secunia.com / advisories/35882
slackware.com / security/viewer.php
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10939
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6200
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6222
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7235
sunsolve.sun.com / search/document.do
usn.ubuntu.com / 764-1
redhat.com / archives/fedora-package-announce/2009-April/msg00683.html
redhat.com / archives/fedora-package-announce/2009-July/msg00444.html
redhat.com / archives/fedora-package-announce/2009-July/msg00504.html
debian.org / security/2009/dsa-1797
mandriva.com / security/advisories
mozilla.org / security/announce/2009/mfsa2009-21.html
Vendor Advisory
redhat.com / support/errata/RHSA-2009-0436.html
securityfocus.com / bid/34656
securitytracker.com / id
vupen.com / english/advisories/2009/1125