Vulnerability in Mozilla Firefox

CVE-2022-42927

A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.

EPSS: 0.004 (34.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-42927?
CVE-2022-42927 is a high-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 8.1/10. Published 2022-12-22.
How severe is CVE-2022-42927?
High severity. CVSS v3 base score is 8.1 out of 10.