CVE-2015-0807

medium
Published 2015-04-01 ยท Modified 2026-05-06
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
6.8

Description

The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.

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.

Application impact

VendorProductVersionsFixed
mozilla mozillafirefox{"endIncluding":"36.0.4"}
mozilla mozillafirefox31.0
mozilla mozillafirefox31.1.0
mozilla mozillafirefox31.1.1
mozilla mozillafirefox31.3.0
mozilla mozillafirefox31.5.1
mozilla mozillafirefox31.5.2
mozilla mozillafirefox31.5.3
mozilla mozillafirefox_esr31.1
mozilla mozillafirefox_esr31.2
mozilla mozillafirefox_esr31.3
mozilla mozillafirefox_esr31.4
mozilla mozillafirefox_esr31.5
mozilla mozillathunderbird{"endIncluding":"31.5"}

References

CWEs

CWE-352

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

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