VULNERABILITY

MFSA2025-27 Thunderbird: Security Vulnerabilities fixed in Thunderbird ESR 128.9.2 (CVE-2025-3523)

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MFSA2025-27 Thunderbird: Security Vulnerabilities fixed in Thunderbird ESR 128.9.2 (CVE-2025-3523)

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
04/15/2025
Created
04/17/2025
Added
04/16/2025
Modified
05/02/2025

Description

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.

Solution(s)

  • mozilla-thunderbird-upgrade-128_9_2

References

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