Vulnerability Description
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 131.0 |
| Mozilla | Firefox Esr | < 115.16.0 |
| Mozilla | Thunderbird | < 128.3 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1918874Permissions 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/mfsa2024-48/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-49/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-50/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/10/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00006.html
FAQ
What is CVE-2024-9394?
CVE-2024-9394 is a vulnerability with a CVSS score of 7.5 (HIGH). An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This acc...
How severe is CVE-2024-9394?
CVE-2024-9394 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-9394?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.