CVE-2012-4195

medium
Published 2012-10-29 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
4.3

Description

The nsLocation::CheckURL function in Mozilla Firefox before 16.0.2, Firefox ESR 10.x before 10.0.10, Thunderbird before 16.0.2, Thunderbird ESR 10.x before 10.0.10, and SeaMonkey before 2.13.2 does not properly determine the calling document and principal in its return value, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site, and makes it easier for remote attackers to execute arbitrary JavaScript code by leveraging certain add-on behavior.

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

redhat Red Hat Affected 3 releases
VersionStatusFixed in
6.3 Affected โ€”
6.0 Affected โ€”
5.0 Affected โ€”
suse SUSE Affected 5 releases
VersionStatusFixed in
12.2 Affected โ€”
12.1 Affected โ€”
11.4 Affected โ€”
11 Affected โ€”
10 Affected โ€”
ubuntu Ubuntu Affected 5 releases
VersionStatusFixed in
12.10 Affected โ€”
12.04 Affected โ€”
11.10 Affected โ€”
11.04 Affected โ€”
10.04 Affected โ€”

Application impact

VendorProductVersionsFixed
mozilla mozillafirefox{"endExcluding":"10.0.10"}10.0.10
mozilla mozillaseamonkey{"endExcluding":"2.13.2"}2.13.2
mozilla mozillathunderbird{"endExcluding":"16.0.2"}16.0.2
mozilla mozillathunderbird_esr{"endExcluding":"10.0.10"}10.0.10

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.