CVE-2022-42927

8.1 highEPSS 0.4%

High (8.1) in mozilla. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.1 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-346
Published: 2022-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox
mozilla:firefox_esr
mozilla:thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1789128
https://www.mozilla.org/security/advisories/mfsa2022-44/
https://www.mozilla.org/security/advisories/mfsa2022-45/
https://www.mozilla.org/security/advisories/mfsa2022-46/
https://bugzilla.mozilla.org/show_bug.cgi?id=1789128

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