CVE-2022-34477 — Observable Discrepancy in Mozilla Firefox
Severity
7.5HIGHNVD
OSV8.8
EPSS
0.4%
top 42.26%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 22
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6
Affected Packages5 packages
🔴Vulnerability Details
3GHSA▶
GHSA-hc2g-x3vc-qhj4: The MediaError message property should be consistent to avoid leaking information about cross-origin resources; however for a same-site cross-origin r↗2022-12-22
OSV▶
CVE-2022-34477: The MediaError message property should be consistent to avoid leaking information about cross-origin resources; however for a same-site cross-origin r↗2022-07-05