vulnerability
Ubuntu: USN-7663-1 (CVE-2025-6430): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Jun 24, 2025 | Jun 26, 2025 | Aug 18, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Jun 24, 2025
Added
Jun 26, 2025
Modified
Aug 18, 2025
Description
When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
Solution
ubuntu-upgrade-thunderbird
References
- CVE-2025-6430
- https://attackerkb.com/topics/CVE-2025-6430
- CWE-79
- UBUNTU-USN-7663-1
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1971140
- URL-https://ubuntu.com/security/notices/USN-7663-1
- URL-https://www.cve.org/CVERecord?id=CVE-2025-6430
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-51/#CVE-2025-6430
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-53/#CVE-2025-6430
- URL-https://www.mozilla.org/security/advisories/mfsa2025-51/
- URL-https://www.mozilla.org/security/advisories/mfsa2025-53/
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