Description
When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= unspecified, < 98 |
| Mozilla | Firefox ESR | >= unspecified, < 91.7 |
| Mozilla | Thunderbird | >= unspecified, < 91.7 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-10/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-12/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-10/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-12/Vendor Advisory
Timeline
- Published
- Dec 22, 2022
- Last modified
- Jun 17, 2026
- NVD status
- Modified