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Fencer Vulns
medium 4.3

CVE-2008-5019 json

The session restore feature in Mozilla Firefox 3.x before 3.0.4 and 2.x before 2.0.0.18 allows remote attackers to violate the same origin…

published 2008-11-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4998

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

The session restore feature in Mozilla Firefox 3.x before 3.0.4 and 2.x before 2.0.0.18 allows remote attackers to violate the same origin policy to conduct cross-site scripting (XSS) attacks and execute arbitrary JavaScript with chrome privileges via unknown vectors.

Patch / fix

  • mozilla firefox 2.0.0.18, 3.0.4
  • firefox RHEL 4 3.0.4-1.el4
  • firefox RHEL 5 3.0.4-1.el5
  • nss RHEL 4 3.12.1.1-3.el4
  • nss RHEL 5 3.12.1.1-3.el5
  • yelp RHEL 5 2.16.0-22.el5
  • devhelp RHEL 5 0.12-20.el5
  • nss-tools RHEL 5 3.12.1.1-3.el5
  • xulrunner RHEL 5 1.9.0.4-1.el5

red hat advisories RHSA-2008:0978RHSA-2008:0977

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-2008-5019 updated

Mozilla XSS via session restore

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more
    fixed: vendor fix RHSA-2008:0977
  • Red Hat Enterprise Linux (v. 5 server) nss 3.12.1.1-3.el5, yelp 2.16.0-22.el5, devhelp 0.12-20.el5, firefox 3.0.4-1.el5, xulrunner 1.9.0.4-1.el5, nss-tools 3.12.1.1-3.el5, +1 more
    fixed: vendor fix RHSA-2008:0978
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux AS version 4 nss 3.12.1.1-3.el4, firefox 3.0.4-1.el4, seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, +1 more
    fixed: vendor fix RHSA-2008:0977
  • Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.12.1.1-3.el5, yelp 2.16.0-22.el5, devhelp 0.12-20.el5, firefox 3.0.4-1.el5, xulrunner 1.9.0.4-1.el5, nss-tools 3.12.1.1-3.el5, +1 more
    fixed: vendor fix RHSA-2008:0978
  • Red Hat Enterprise Linux Desktop version 4 nss 3.12.1.1-3.el4, firefox 3.0.4-1.el4, seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, +1 more
    fixed: vendor fix RHSA-2008:0977
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.12.1.1-3.el5, devhelp 0.12-20.el5, xulrunner 1.9.0.4-1.el5, nss-tools 3.12.1.1-3.el5, xulrunner-devel-unstable 1.9.0.4-1.el5
    fixed: vendor fix RHSA-2008:0978
  • Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux ES version 4 nss 3.12.1.1-3.el4, firefox 3.0.4-1.el4, seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, +1 more Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux WS version 4 nss 3.12.1.1-3.el4, firefox 3.0.4-1.el4, seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, +1 more
    +1 more products
    Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more
    fixed: vendor fix RHSA-2008:0977

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

3.07% chance of exploitation in the next 30 days, higher than 87% 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.