The following table lists the changes that have been made to the
CVE-2025-3522 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.
Apr. 15, 2025
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Description | Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validated or sanitized, it can reference internal resources like chrome:// or SMB share file:// links, potentially leading to hashed Windows credential leakage and opening the door to more serious security issues. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2. | |
| Added | Reference | https://bugzilla.mozilla.org/show_bug.cgi?id=1955372 | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-26/ | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-27/ |
CVE ID : CVE-2025-10304 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The Everest Backup –
CVE ID : CVE-2025-12585 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The MxChat – AI
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