CVE-2022-34477

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

The MediaError message property should be consistent to avoid leaking information about cross-origin resources; however for a same-site cross-origin resource, the message could have leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox < 102.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-203

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 102

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1731614Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-24/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1731614Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-24/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1731614Issue Tracking, Permissions Required, Vendor Advisory

Timeline

Published: Dec 22, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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