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CVE-2022-42927

Mozilla: Same-origin policy violation could have leaked cross-origin URLs

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.0

Review impact separately from score.

Published · October 18, 2022

Updated · November 21, 2025

Description

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of a same-origin policy violation that could have allowed the theft of cross-origin URL entries, leaking the result of a redirect via performance.getEntries().

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-829 · Inclusion of Functionality from Untrusted Control Sphere