CVE-2024-9398
Last modified
CVE-2024-9398 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Mozilla | Firefox | < 131.0 | — |
| Mozilla | Firefox Esr | < 128.3.0 | — |
| Mozilla | Thunderbird | < 128.3 | — |
| Mozilla | Thunderbird | 129.0 | Beta |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1881037Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2024-46/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-47/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-49/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-50/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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