CVE-2025-4088

Cross-site request forgery via storage access API redirects

CVSS 6.5 MEDIUMEPSS 0.2%CWE-352

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

29 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. This enabled potential Cross-Site Request Forgery attacks across origins. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

Mozilla · Firefox Mozilla · Thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1953521 https://www.mozilla.org/security/advisories/mfsa2025-28/https://www.mozilla.org/security/advisories/mfsa2025-31/