VDB
CVE-2020-6809
CVE-2020-6809
PUBLISHED
CVSS 7.5 HIGH
When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. This vulnerability affects Firefox < 74.
EPSS 1.48% · 73.1th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
1.48%
73.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | firefox | *, *, * |
| Ubuntu:16.04:LTS | firefox | 62.0+build2-0ubuntu0.16.04.3, 62.0+build2-0ubuntu0.16.04.4, 62.0+build2-0ubuntu0.16.04.5 |
| Ubuntu:18.04:LTS | mozjs52 | 52.9.1-0ubuntu0.18.04.1, 0, 52.3.1-0ubuntu3 |
| Ubuntu:20.04:LTS | firefox | *, 73.0+build2-0ubuntu1, * |
| Ubuntu:18.04:LTS | mozjs38 | 38.8.0~repack1-0ubuntu1, 0, 38.8.0~repack1-0ubuntu4 |
| Ubuntu:20.04:LTS | mozjs52 | 0, 52.9.1-1build1, 52.9.1-1ubuntu3 |
Timeline
- Mar 10, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-6809 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6809 third-party-advisory
- https://ubuntu.com/security/notices/USN-4299-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-6809 third-party-advisory