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.
A vulnerability was found in eolinker apinto-dashboard. It has been rated as problematic. This issue affects some unknown processing of the file /login. The manipulation of the argument callback leads to open redirect. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-212633 was assigned to this vulnerability.