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Fencer Intel
medium 4.3

CVE-2011-3648 json

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7.0 and Thunderbird before 3.1.6 and 5.0 through…

published 2011-11-09 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3607

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7.0 and Thunderbird before 3.1.6 and 5.0 through 7.0 allows remote attackers to inject arbitrary web script or HTML via crafted text with Shift JIS encoding.

Patch / fix

  • seamonkey RHEL 4 1.0.9-77.el4
  • seamonkey-chat RHEL 4 1.0.9-77.el4
  • seamonkey-mail RHEL 4 1.0.9-77.el4
  • seamonkey-js-debugger RHEL 4 1.0.9-77.el4
  • seamonkey-dom-inspector RHEL 4 1.0.9-77.el4
  • thunderbird RHEL 6 3.1.16-2.el6_1
  • thunderbird RHEL 4 1.5.0.12-45.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.24-27.el5_7

red hat advisories RHSA-2011:1440RHSA-2011:1439RHSA-2011:1438RHSA-2011:1437

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

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-2011-3648 updated cvss 5.1

Mozilla: Universal XSS likely with MultiByte charset (MFSA 2011-47)

  • Red Hat Enterprise Linux (v. 5 server) firefox 3.6.24-3.el5_7, xulrunner 1.9.2.24-2.el5_7 Red Hat Enterprise Linux AS version 4 firefox 3.6.24-3.el4, seamonkey 1.0.9-77.el4, seamonkey-chat 1.0.9-77.el4, seamonkey-mail 1.0.9-77.el4, thunderbird 1.5.0.12-45.el4, seamonkey-js-debugger 1.0.9-77.el4, +1 more Red Hat Enterprise Linux Desktop (v. 5 client) firefox 3.6.24-3.el5_7, xulrunner 1.9.2.24-2.el5_7, thunderbird 2.0.0.24-27.el5_7 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.24-3.el4, seamonkey 1.0.9-77.el4, seamonkey-chat 1.0.9-77.el4, seamonkey-mail 1.0.9-77.el4, thunderbird 1.5.0.12-45.el4, seamonkey-js-debugger 1.0.9-77.el4, +1 more Red Hat Enterprise Linux ES version 4 firefox 3.6.24-3.el4, seamonkey 1.0.9-77.el4, seamonkey-chat 1.0.9-77.el4, seamonkey-mail 1.0.9-77.el4, thunderbird 1.5.0.12-45.el4, seamonkey-js-debugger 1.0.9-77.el4, +1 more Red Hat Enterprise Linux Server (v. 6) firefox 3.6.24-3.el6_1, xulrunner 1.9.2.24-2.el6_1.1
    +3 more products
    Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 3.1.16-2.el6_1, xulrunner 1.9.2.24-2.el6_1.1 Red Hat Enterprise Linux WS version 4 firefox 3.6.24-3.el4, seamonkey 1.0.9-77.el4, seamonkey-chat 1.0.9-77.el4, seamonkey-mail 1.0.9-77.el4, thunderbird 1.5.0.12-45.el4, seamonkey-js-debugger 1.0.9-77.el4, +1 more Red Hat RHEL Desktop Workstation (v. 5 client) xulrunner 1.9.2.24-2.el5_7
    fixed: vendor fix RHSA-2011:1437
  • Red Hat RHEL Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-27.el5_7
    fixed: vendor fix RHSA-2011:1438

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

1.47% chance of exploitation in the next 30 days, higher than 73% 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.