Arbitrary file upload in Mozilla Firefox

CVE-2023-37208

When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

Vulnerability class: Unrestricted File Upload

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-37208?
CVE-2023-37208 is a high-severity vulnerability in Mozilla Firefox, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2023-07-05.
How severe is CVE-2023-37208?
High severity. CVSS v3 base score is 7.8 out of 10.