Description
When downloading an HTML file, if the title of the page was formatted as a filename with a malicious extension, Firefox may have saved the file with that extension, leading to possible system compromise if the downloaded file was later ran. This vulnerability affects Firefox < 107.
References (2)
Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1793551
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-47/
Scores
CVSS v3
7.8
EPSS
0.0011
EPSS Percentile
29.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-434
Status
published
Products (1)
mozilla/firefox
< 107.0
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026