Vulnerability Details CVE-2020-8139
A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.016
EPSS Ranking 80.8%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.0
References
- https://hackerone.com/reports/788257
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-015
- https://hackerone.com/reports/788257
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-015
Products affected by CVE-2020-8139
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.0
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.1
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.2
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.3
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.4
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.5
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.6
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.7
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cpe:2.3:a:nextcloud:nextcloud_server:16.0.8
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cpe:2.3:a:nextcloud:nextcloud_server:17.0.0
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cpe:2.3:a:nextcloud:nextcloud_server:17.0.1
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cpe:2.3:a:nextcloud:nextcloud_server:17.0.2
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cpe:2.3:a:nextcloud:nextcloud_server:17.0.3
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cpe:2.3:a:nextcloud:nextcloud_server:18.0.0
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cpe:2.3:o:fedoraproject:fedora:32