CVE-2022-34477

high

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.

References

https://www.mozilla.org/security/advisories/mfsa2022-24/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-37432

https://bugzilla.mozilla.org/show_bug.cgi?id=1731614

Details

Source: Mitre, NVD

Published: 2022-12-22

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00559