CVE-2023-23597

6.5 mediumEPSS 0.3%

Medium (6.5) in mozilla firefox. EPSS 0.3% chance of exploitation in the next 30 days.

A compromised web child process could disable web security opening restrictions, leading to a new child process being spawned within the `file://` context. Given a reliable exploit primitive, this new process could be exploited again leading to arbitrary file read. This vulnerability affects Firefox < 109.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE: CWE-326
Published: 2023-06-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1538028
https://www.mozilla.org/security/advisories/mfsa2023-01/
https://bugzilla.mozilla.org/show_bug.cgi?id=1538028
https://www.mozilla.org/security/advisories/mfsa2023-01/

Check your stack JSON