CVE-2025-3523

Published: 2025-04-15T15:16Z

Last Modified: 2025-04-15T18:15Z

Source: MITRE CVE List

License: MITRE-CVE-TOS

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from untrusted sources. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt