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Fencer Vulns
medium 5.0

CVE-2005-2703 json

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to modify HTTP headers of XML HTTP requests via XMLHttpRequest…

published 2005-09-23 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2704

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to modify HTTP headers of XML HTTP requests via XMLHttpRequest, and possibly use the client to exploit vulnerabilities in servers or proxies, including HTTP request smuggling and HTTP request splitting.

Patch / fix

  • devhelp RHEL 4 0.9.2-2.4.7
  • firefox RHEL 4 1.0.7-1.4.1
  • thunderbird RHEL 4 1.0.7-1.4.1

red hat advisories RHSA-2005:789RHSA-2005:785RHSA-2005:791

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-2005-2703 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 devhelp 0.9.2-2.4.7, firefox 1.0.7-1.4.1, thunderbird 1.0.7-1.4.1 Red Hat Enterprise Linux Desktop version 4 devhelp 0.9.2-2.4.7, firefox 1.0.7-1.4.1, thunderbird 1.0.7-1.4.1 Red Hat Enterprise Linux ES version 4 devhelp 0.9.2-2.4.7, firefox 1.0.7-1.4.1, thunderbird 1.0.7-1.4.1 Red Hat Enterprise Linux WS version 4 devhelp 0.9.2-2.4.7, firefox 1.0.7-1.4.1, thunderbird 1.0.7-1.4.1
    fixed: vendor fix RHSA-2005:789

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

1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.