CVE-2020-6809 PUBLISHED

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 0.46% · 63.8th percentile

Risk Scores

EPSS Score
0.46%
63.8th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSfirefox65.0+build2-0ubuntu0.18.04.1, 64.0+build3-0ubuntu0.18.04.1, 73.0.1+build1-0ubuntu0.18.04.1
Ubuntu:16.04:LTSfirefox59.0.2+build1-0ubuntu0.16.04.3, 60.0+build2-0ubuntu0.16.04.1, 60.0.1+build2-0ubuntu0.16.04.1
Ubuntu:18.04:LTSmozjs520, 52.9.1-0ubuntu0.18.04.1, 52.8.1-0ubuntu0.18.04.1
Ubuntu:20.04:LTSfirefox74.0+build2-0ubuntu2, 74.0+build1-0ubuntu1, 73.0.1+build1-0ubuntu1
Ubuntu:18.04:LTSmozjs3838.8.0~repack1-0ubuntu1, 0, 38.8.0~repack1-0ubuntu4
Ubuntu:20.04:LTSmozjs5252.9.1-1ubuntu3, 52.9.1-1build1, 0

Timeline

References

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