CVE-2024-9398
At a glance Severity MEDIUM 5.3 EPSS EPSS 0.57 % · percentile 47 (2026-10-27) State PUBLISHED Published 2024-10-01 Updated 2025-03-18 Assigner mozilla NVD status Analyzed
Description 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.
Scores Version Score Vector Scored by CVSS 3.1 MEDIUM 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CISA-ADP CVSS 3.1 MEDIUM 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N NVD · nvd@nist.gov (Primary) CVSS 3.1 MEDIUM 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* < 128.3.0cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* < 131.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 128.3cpe:2.3:a:mozilla:thunderbird:129.0:beta:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:129.0:beta2:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:129.0:beta3:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:129.0:beta4:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:129.0:beta5:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:129.0:beta6:*:*:*:*:*:*
Affected products
References
Sources