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CVE-2013-5612

15
FAUCET Score

CVE-2013-5612 describes a cross-site scripting (XSS) vulnerability in Mozilla Firefox before version 26.0 and SeaMonkey before version 2.23. This flaw allows remote attackers to inject arbitrary web script or HTML by exploiting a Same Origin Policy bypass due to the absence of a charset parameter in a Content-Type HTTP header. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and requiring user interaction (AV:N/AC:M/Au:N/C:N/I:P/A:N). While it could lead to information disclosure or integrity compromise, the overall impact is considered low. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 26.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.23CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
19CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
20CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
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
3.40%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0340 is in the 82nd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:24.2.0-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:24.2.0-2.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:24.2.0-1.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:24.2.0-1.el6_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-5612Moderate

Mozilla: Character encoding cross-origin XSS attack (MFSA 2013-106)

Dec 10, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2013-December/123437.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-December/124257.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2013-12/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00085.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00086.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00087.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2014-01/msg00002.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-1812.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
security.gentoo.org / glsa/201504-01
Third Party Advisory
mozilla.org / security/announce/2013/mfsa2013-106.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
securityfocus.com / bid/64205
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029470
Third Party AdvisoryVDB Entry
securitytracker.com / id/1029476
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2052-1
Third Party Advisory