Cross-Site Request Forgery (CSRF) in Mozilla Firefox and Firefox for Android - CVE-2026-4728
Published: March 24, 2026
Vulnerability identifier: #VU124333
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-4728
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox for Android
Mozilla Firefox
Firefox for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to perform phishing attacks.
The vulnerability exists due to a spoofing issue in the Privacy: Anti-Tracking component when handling website identifiers. A remote attacker can trick the victim into visiting a specially crafted website to perform phishing attacks.
How to mitigate CVE-2026-4728
Install security update from vendor's website.