cve.bz

CVE-2020-6809

7.5 highEPSS 1.5%

High (7.5) in mozilla firefox. EPSS 1.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
Published
Modified
Record from
the NVD, synced

Affected

References

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