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Fencer Vulns
low 2.6

CVE-2008-5503 json

The loadBindingDocument function in Mozilla Firefox 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 d…

published 2008-12-17 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5480

cvss
2.6
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 74%
public exploits
0
none known

Summary

The loadBindingDocument function in Mozilla Firefox 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 does not perform any security checks related to the same-domain policy, which allows remote attackers to read or access data from other domains via crafted XBL bindings.

Patch / fix

  • thunderbird RHEL 4 1.5.0.12-18.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.19-1.el5_2
  • seamonkey RHEL 2.1 1.0.9-0.25.el2
  • seamonkey RHEL 3 1.0.9-0.29.el3
  • seamonkey RHEL 4 1.0.9-32.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.25.el2
  • seamonkey-nss RHEL 3 1.0.9-0.29.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.25.el2

red hat advisories RHSA-2009:0002RHSA-2008:1037

  • MozillaThunderbird openSUSE Tumbleweed 91.1.1-1.1

opensuse advisories openSUSE-SU-2024:10601-1

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-2008-5503 updated

Firefox 2 Information stealing via loadBindingDocument

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.29.el3, seamonkey-nss 1.0.9-0.29.el3, seamonkey-chat 1.0.9-0.29.el3, seamonkey-mail 1.0.9-0.29.el3, seamonkey-nspr 1.0.9-0.29.el3, seamonkey-js-debugger 1.0.9-0.29.el3, +1 more Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.25.el2, seamonkey-nss 1.0.9-0.25.el2, seamonkey-chat 1.0.9-0.25.el2, seamonkey-mail 1.0.9-0.25.el2, seamonkey-nspr 1.0.9-0.25.el2, seamonkey-js-debugger 1.0.9-0.25.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.29.el3, seamonkey-nss 1.0.9-0.29.el3, seamonkey-chat 1.0.9-0.29.el3, seamonkey-mail 1.0.9-0.29.el3, seamonkey-nspr 1.0.9-0.29.el3, seamonkey-js-debugger 1.0.9-0.29.el3, +1 more Red Hat Enterprise Linux AS version 4 seamonkey 1.0.9-32.el4, seamonkey-chat 1.0.9-32.el4, seamonkey-mail 1.0.9-32.el4, thunderbird 1.5.0.12-18.el4, seamonkey-js-debugger 1.0.9-32.el4, seamonkey-dom-inspector 1.0.9-32.el4
    fixed: vendor fix RHSA-2008:1037
  • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird 2.0.0.19-1.el5_2
    fixed: vendor fix RHSA-2009:0002
  • Red Hat Enterprise Linux Desktop version 4 seamonkey 1.0.9-32.el4, seamonkey-chat 1.0.9-32.el4, seamonkey-mail 1.0.9-32.el4, thunderbird 1.5.0.12-18.el4, seamonkey-js-debugger 1.0.9-32.el4, seamonkey-dom-inspector 1.0.9-32.el4 Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.25.el2, seamonkey-nss 1.0.9-0.25.el2, seamonkey-chat 1.0.9-0.25.el2, seamonkey-mail 1.0.9-0.25.el2, seamonkey-nspr 1.0.9-0.25.el2, seamonkey-js-debugger 1.0.9-0.25.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.29.el3, seamonkey-nss 1.0.9-0.29.el3, seamonkey-chat 1.0.9-0.29.el3, seamonkey-mail 1.0.9-0.29.el3, seamonkey-nspr 1.0.9-0.29.el3, seamonkey-js-debugger 1.0.9-0.29.el3, +1 more Red Hat Enterprise Linux ES version 4 seamonkey 1.0.9-32.el4, seamonkey-chat 1.0.9-32.el4, seamonkey-mail 1.0.9-32.el4, thunderbird 1.5.0.12-18.el4, seamonkey-js-debugger 1.0.9-32.el4, seamonkey-dom-inspector 1.0.9-32.el4
    fixed: vendor fix RHSA-2008:1037
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.19-1.el5_2
    fixed: vendor fix RHSA-2009:0002
  • Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.25.el2, seamonkey-nss 1.0.9-0.25.el2, seamonkey-chat 1.0.9-0.25.el2, seamonkey-mail 1.0.9-0.25.el2, seamonkey-nspr 1.0.9-0.25.el2, seamonkey-js-debugger 1.0.9-0.25.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.29.el3, seamonkey-nss 1.0.9-0.29.el3, seamonkey-chat 1.0.9-0.29.el3, seamonkey-mail 1.0.9-0.29.el3, seamonkey-nspr 1.0.9-0.29.el3, seamonkey-js-debugger 1.0.9-0.29.el3, +1 more Red Hat Enterprise Linux WS version 4 seamonkey 1.0.9-32.el4, seamonkey-chat 1.0.9-32.el4, seamonkey-mail 1.0.9-32.el4, thunderbird 1.5.0.12-18.el4, seamonkey-js-debugger 1.0.9-32.el4, seamonkey-dom-inspector 1.0.9-32.el4 Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.25.el2, seamonkey-nss 1.0.9-0.25.el2, seamonkey-chat 1.0.9-0.25.el2, seamonkey-mail 1.0.9-0.25.el2, seamonkey-nspr 1.0.9-0.25.el2, seamonkey-js-debugger 1.0.9-0.25.el2, +1 more
    fixed: vendor fix RHSA-2008:1037

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

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:P/I:N/A:N

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.