vulnerability

MFSA2025-42 Firefox: Security Vulnerabilities fixed in Firefox 139 (CVE-2025-5266)

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Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
May 27, 2025
Added
May 28, 2025
Modified
Jun 13, 2025

Description

Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox

Solution

mozilla-firefox-upgrade-139_0

References

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