What is CVE-2023-25731?

CVE-2023-25731 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Validation of Specified Quantity in Input. CVSS score: 8.8/10. Published 2023-06-02.

How severe is CVE-2023-25731?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mozilla Firefox

CVE-2023-25731

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code. This vulnerability affects Firefox < 110.

EPSS: 0.006 (43.1th 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)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2023-25731?: CVE-2023-25731 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Validation of Specified Quantity in Input. CVSS score: 8.8/10. Published 2023-06-02.
How severe is CVE-2023-25731?: High severity. CVSS v3 base score is 8.8 out of 10.