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Fencer Vulns
medium 4.3

CVE-2008-1234 json

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allows…

published 2008-03-27 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-1242

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allows remote attackers to inject arbitrary web script or HTML via event handlers, aka "Universal XSS using event handlers."

Patch / fix

  • thunderbird RHEL 4 1.5.0.12-10.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 1.5.0.12-11.el5_1
  • seamonkey RHEL 2.1 1.0.9-0.14.el2
  • seamonkey RHEL 3 1.0.9-0.16.el3
  • seamonkey RHEL 4 1.0.9-15.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.14.el2
  • seamonkey-nss RHEL 3 1.0.9-0.16.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.14.el2

red hat advisories RHSA-2008:0209RHSA-2008:0208RHSA-2008:0207

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-2008-1234 updated

universal XSS using event handlers

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.16.el3, seamonkey-nss 1.0.9-0.16.el3, seamonkey-chat 1.0.9-0.16.el3, seamonkey-mail 1.0.9-0.16.el3, seamonkey-nspr 1.0.9-0.16.el3, seamonkey-js-debugger 1.0.9-0.16.el3, +1 more
    fixed: vendor fix RHSA-2008:0208
  • Red Hat Enterprise Linux (v. 5 server) firefox 1.5.0.12-14.el5_1
    fixed: vendor fix RHSA-2008:0207
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.14.el2, seamonkey-nss 1.0.9-0.14.el2, seamonkey-chat 1.0.9-0.14.el2, seamonkey-mail 1.0.9-0.14.el2, seamonkey-nspr 1.0.9-0.14.el2, seamonkey-js-debugger 1.0.9-0.14.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.16.el3, seamonkey-nss 1.0.9-0.16.el3, seamonkey-chat 1.0.9-0.16.el3, seamonkey-mail 1.0.9-0.16.el3, seamonkey-nspr 1.0.9-0.16.el3, seamonkey-js-debugger 1.0.9-0.16.el3, +1 more Red Hat Enterprise Linux AS version 4 seamonkey 1.0.9-15.el4, firefox 1.5.0.12-0.14.el4, seamonkey-chat 1.0.9-15.el4, seamonkey-mail 1.0.9-15.el4, thunderbird 1.5.0.12-10.el4, seamonkey-js-debugger 1.0.9-15.el4, +1 more
    fixed: vendor fix RHSA-2008:0208
  • Red Hat Enterprise Linux Desktop (v. 5 client) firefox 1.5.0.12-14.el5_1, thunderbird 1.5.0.12-11.el5_1
    fixed: vendor fix RHSA-2008:0207
  • Red Hat Enterprise Linux Desktop version 4 seamonkey 1.0.9-15.el4, firefox 1.5.0.12-0.14.el4, seamonkey-chat 1.0.9-15.el4, seamonkey-mail 1.0.9-15.el4, thunderbird 1.5.0.12-10.el4, seamonkey-js-debugger 1.0.9-15.el4, +1 more Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.14.el2, seamonkey-nss 1.0.9-0.14.el2, seamonkey-chat 1.0.9-0.14.el2, seamonkey-mail 1.0.9-0.14.el2, seamonkey-nspr 1.0.9-0.14.el2, seamonkey-js-debugger 1.0.9-0.14.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.16.el3, seamonkey-nss 1.0.9-0.16.el3, seamonkey-chat 1.0.9-0.16.el3, seamonkey-mail 1.0.9-0.16.el3, seamonkey-nspr 1.0.9-0.16.el3, seamonkey-js-debugger 1.0.9-0.16.el3, +1 more Red Hat Enterprise Linux ES version 4 seamonkey 1.0.9-15.el4, firefox 1.5.0.12-0.14.el4, seamonkey-chat 1.0.9-15.el4, seamonkey-mail 1.0.9-15.el4, thunderbird 1.5.0.12-10.el4, seamonkey-js-debugger 1.0.9-15.el4, +1 more
    fixed: vendor fix RHSA-2008:0208
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 1.5.0.12-11.el5_1
    fixed: vendor fix RHSA-2008:0209
  • Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.14.el2, seamonkey-nss 1.0.9-0.14.el2, seamonkey-chat 1.0.9-0.14.el2, seamonkey-mail 1.0.9-0.14.el2, seamonkey-nspr 1.0.9-0.14.el2, seamonkey-js-debugger 1.0.9-0.14.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.16.el3, seamonkey-nss 1.0.9-0.16.el3, seamonkey-chat 1.0.9-0.16.el3, seamonkey-mail 1.0.9-0.16.el3, seamonkey-nspr 1.0.9-0.16.el3, seamonkey-js-debugger 1.0.9-0.16.el3, +1 more Red Hat Enterprise Linux WS version 4 seamonkey 1.0.9-15.el4, firefox 1.5.0.12-0.14.el4, seamonkey-chat 1.0.9-15.el4, seamonkey-mail 1.0.9-15.el4, thunderbird 1.5.0.12-10.el4, seamonkey-js-debugger 1.0.9-15.el4, +1 more Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.14.el2, seamonkey-nss 1.0.9-0.14.el2, seamonkey-chat 1.0.9-0.14.el2, seamonkey-mail 1.0.9-0.14.el2, seamonkey-nspr 1.0.9-0.14.el2, seamonkey-js-debugger 1.0.9-0.14.el2, +1 more
    fixed: vendor fix RHSA-2008:0208

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

2.77% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 Vulns 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.