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Fencer Intel
medium 4.3

CVE-2013-6674 json

Cross-site scripting (XSS) vulnerability in Mozilla Thunderbird 17.x through 17.0.8, Thunderbird ESR 17.x through 17.0.10, and SeaMonkey be…

published 12y ago modified 4mo ago also EUVD-2013-6476

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.7%
EPSS 7.7% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in Mozilla Thunderbird 17.x through 17.0.8, Thunderbird ESR 17.x through 17.0.10, and SeaMonkey before 2.20 allows user-assisted remote attackers to inject arbitrary web script or HTML via an e-mail message containing a data: URL in an IFRAME element, a related issue to CVE-2014-2018.

Patch / fix

  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 24.2.0-2.el5_10
  • thunderbird RHEL 6 24.2.0-1.el6_5

red hat advisories RHSA-2013:1823

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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-2013-6674 updated cvss 5.1

Mozilla: Script execution in HTML mail replies (MFSA 2014-14)

  • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird 24.2.0-2.el5_10 Red Hat Enterprise Linux Desktop (v. 6) thunderbird 24.2.0-1.el6_5 Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 24.2.0-2.el5_10 Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 24.2.0-1.el6_5 Red Hat Enterprise Linux Workstation (v. 6) thunderbird 24.2.0-1.el6_5
    fixed: vendor fix RHSA-2013:1823
  • Red Hat Enterprise Linux 5 firefox Red Hat Enterprise Linux 6 firefox
    not affected: vulnerable code not present

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

Timeline

  1. First public exploit (EDB-31223)
  2. Published

Exploit prediction

7.70% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-31223 Mozilla Thunderbird 17.0.6 - Input Validation Filter Bypass dos, 2014-01-27
  • seclists.org http://seclists.org/fulldisclosure/2014/Jan/182 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/124965/Mozilla-Thunderbird-Filter-Bypass.html referenced PoC, tagged "exploit" by a source, unverified

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.