CVE-2020-6809

Summary

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.

Affected Software

Weaknesses

• Web Extensions with the all-urls permission could access local files

ADP Enrichment

CVE Program Container

Additional References

• https://www.mozilla.org/security/advisories/mfsa2020-08/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1420296

References

• https://www.mozilla.org/security/advisories/mfsa2020-08/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1420296

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