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CVE-2024-9394
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This…
Medium6.1EPSS 0.52%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.52% · top 56% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
- Cross-origin access to JSON contents through multipart responses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs
Affected products
- affected unspecified – < 131
- affected unspecified – < 128.3
- affected unspecified – < 115.16
- affected unspecified – < 128.3
- affected unspecified – < 131
References (8)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1918874 (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-46/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-47/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-48/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-49/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-50/ (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/10/msg00006.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/10/msg00004.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-9394)Record last updated .