Bug 1829343 (CVE-2020-6809) - CVE-2020-6809 Mozilla: Web Extensions with the all-urls permission could access local files
Summary: CVE-2020-6809 Mozilla: Web Extensions with the all-urls permission could acce...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-6809
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1829324
TreeView+ depends on / blocked
 
Reported: 2020-04-29 12:18 UTC by msiddiqu
Modified: 2021-02-16 20:10 UTC (History)
5 users (show)

Fixed In Version: firefox 74
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Last Closed: 2020-04-29 16:32:04 UTC
Embargoed:

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Description msiddiqu 2020-04-29 12:18:10 UTC 
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.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6809
Comment 1 msiddiqu 2020-04-29 12:18:15 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Jan Biniok
Comment 2 Product Security DevOps Team 2020-04-29 16:32:04 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-6809
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