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CVE-2024-7525
It was possible for a web extension with minimal permissions to create a `StreamFilter` which could be used to read and modify the…
Critical9.1EPSS 0.60%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
It was possible for a web extension with minimal permissions to create a `StreamFilter` which could be used to read and modify the response body of requests on any site. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
Timeline
ID reserved
By mozilla
- 1 day later
· 1 day later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Analyzed | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.60% · top 51% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
- Missing permission check when creating a StreamFilter
- CWE-284 Improper Access Control (opens in a new tab)All about CWE-284 and its CVEs
- CWE-276 (opens in a new tab)All about CWE-276 and its CVEs
Affected products
- affected unspecified – < 129
- affected unspecified – < 115.14
- affected unspecified – < 128.1
- affected unspecified – < 128.1
- affected unspecified – < 115.14
References (6)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1909298 (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-33/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-34/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-35/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-37/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-38/ (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-2024-7525)Record last updated .