A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.
https://www.mozilla.org/security/advisories/mfsa2022-53/
https://bugzilla.mozilla.org/show_bug.cgi?id=1746139
https://www.mozilla.org/security/advisories/mfsa2022-52/
https://www.mozilla.org/security/advisories/mfsa2022-51/
https://www.mozilla.org/security/advisories/mfsa2022-54/
Source: MITRE
Published: 2022-12-22
Updated: 2023-05-03
Type: NVD-CWE-noinfo
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH