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CVE-2024-9398

CVE-2024-9398

CVSS 5.3 MEDIUMEPSS 0.6%CWE-203
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Mozilla · FirefoxMozilla · Firefox ESRMozilla · Thunderbird

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References
https://bugzilla.mozilla.org/show_bug.cgi?id=1881037https://www.mozilla.org/security/advisories/mfsa2024-46/https://www.mozilla.org/security/advisories/mfsa2024-47/https://www.mozilla.org/security/advisories/mfsa2024-49/https://www.mozilla.org/security/advisories/mfsa2024-50/