Published: 25/03/2020 Updated: 21/07/2021

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

A security issue has been found in Firefox prior to 74 where, 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.

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mozilla firefox

Firefox could be made to crash or run programs as your login if it opened a malicious website ...

Mozilla Foundation Security Advisory 2020-08 Security Vulnerabilities fixed in Firefox 74 Announced March 10, 2020 Impact high Products Firefox Fixed in Firefox 74 ...

A security issue has been found in Firefox before 74 where, 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 ...

NVD-CWE-noinfo https://bugzilla.mozilla.org/show_bug.cgi?id=1420296 https://www.mozilla.org/security/advisories/mfsa2020-08/https://usn.ubuntu.com/4299-1/https://nvd.nist.gov https://security.archlinux.org/CVE-2020-6809

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CVE-2020-6809

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