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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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMozilla Firefox
PublishedDec 22, 2022
First seenDec 22, 2022
Weakness typeCWE-203CWE-203

How to fix

Update
  • mozilla firefox102.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 102.0102.0

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