Arbitrary file upload in Mozilla Firefox
CVE-2022-34482
An attacker who could have convinced a user to drag and drop an image to a filesystem could have manipulated the resulting filename to contain an executable extension, and by extension potentially tricked the user into executing malicious code. While very similar, this is a separate issue from CVE-2022-34483. This vulnerability affects Firefox < 102.
Vulnerability class: Unrestricted File Upload
EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Permissions Required, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-34482?
- CVE-2022-34482 is a high-severity vulnerability in Mozilla Firefox, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-12-22.
- How severe is CVE-2022-34482?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-34482 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.