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Fencer Vulns
medium 5.0

CVE-2005-2266 json

Firefox before 1.0.5 and Mozilla before 1.7.9 allows a child frame to call top.focus and other methods in a parent frame, even when the par…

published 2005-07-13 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2267

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 79%
public exploits
0
none known

Summary

Firefox before 1.0.5 and Mozilla before 1.7.9 allows a child frame to call top.focus and other methods in a parent frame, even when the parent is in a different domain, which violates the same origin policy and allows remote attackers to steal sensitive information such as cookies and passwords from web sites whose child frames do not verify that they are in the same domain as their parents.

Patch / fix

  • thunderbird RHEL 4 1.0.6-1.4.1
  • devhelp RHEL 4 0.9.2-2.4.6
  • firefox RHEL 4 1.0.6-1.4.1

red hat advisories RHSA-2005:601RHSA-2005:587RHSA-2005:586

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-2005-2266 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 devhelp 0.9.2-2.4.6, firefox 1.0.6-1.4.1, thunderbird 1.0.6-1.4.1 Red Hat Enterprise Linux Desktop version 4 devhelp 0.9.2-2.4.6, firefox 1.0.6-1.4.1, thunderbird 1.0.6-1.4.1 Red Hat Enterprise Linux ES version 4 devhelp 0.9.2-2.4.6, firefox 1.0.6-1.4.1, thunderbird 1.0.6-1.4.1 Red Hat Enterprise Linux WS version 4 devhelp 0.9.2-2.4.6, firefox 1.0.6-1.4.1, thunderbird 1.0.6-1.4.1
    fixed: vendor fix RHSA-2005:587

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

1.83% chance of exploitation in the next 30 days, higher than 79% 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: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.