6.5
Medium
CVE-2025-4088 A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to…
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 138 | earliest → < 138 | 138 |
| Thunderbird 138 | earliest → < 138 | 138 |