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Fencer Intel
medium 4.3

CVE-2013-5612 json

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 26.0 and SeaMonkey before 2.23 makes it easier for remote attackers to i…

published 12y ago modified 4mo ago also EUVD-2013-5452

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 26.0 and SeaMonkey before 2.23 makes it easier for remote attackers to inject arbitrary web script or HTML by leveraging a Same Origin Policy violation triggered by lack of a charset parameter in a Content-Type HTTP header.

Patch / fix

  • mozilla firefox 26.0
  • mozilla seamonkey 2.23
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 24.2.0-2.el5_10
  • thunderbird RHEL 6 24.2.0-1.el6_5
  • firefox RHEL 5 24.2.0-1.el5_10
  • firefox RHEL 6 24.2.0-1.el6_5

red hat advisories RHSA-2013:1823RHSA-2013:1812

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1

Is CVE-2013-5612 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-5612 updated cvss 4.3

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

  • Red Hat Enterprise Linux (v. 5 server) firefox 24.2.0-1.el5_10 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 24.2.0-1.el5_10, thunderbird 24.2.0-2.el5_10 Red Hat Enterprise Linux Desktop (v. 6) firefox 24.2.0-1.el6_5, thunderbird 24.2.0-1.el6_5 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 24.2.0-1.el6_5
    fixed: vendor fix RHSA-2013:1812
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 24.2.0-2.el5_10
    fixed: vendor fix RHSA-2013:1823
  • Red Hat Enterprise Linux Server (v. 6) firefox 24.2.0-1.el6_5
    fixed: vendor fix RHSA-2013:1812
  • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 24.2.0-1.el6_5
    fixed: vendor fix RHSA-2013:1823
  • Red Hat Enterprise Linux Workstation (v. 6) firefox 24.2.0-1.el6_5, thunderbird 24.2.0-1.el6_5
    fixed: vendor fix RHSA-2013:1812

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.40% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.