CVE-2025-1015

A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the "Other" field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird and that page could execute (unprivileged) JavaScript.

Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.