Vulnerability in Mozilla Firefox

CVE-2023-5725

A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-5725?
CVE-2023-5725 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 4.3/10. Published 2023-10-25.
How severe is CVE-2023-5725?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2023-5725 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.