What’s Vulnerable › Vulnerabilities

CVE-2020-8153

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-12 · updated 2026-06-17
• Weakness: CWE-284

Description

Improper access control in Groupfolders app 4.0.3 allowed to delete hidden directories when when renaming an accessible item to the same name.

Affected products

• Fedoraproject Fedora: 32
• nextcloud Group Folders: before 4.0.4 — fixed in 4.0.4

How to fix

Upgrade to a fixed version: nextcloud Group Folders 4.0.4. Check the vendor advisory for mitigations.

References

• https://hackerone.com/reports/642515
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-017
• https://hackerone.com/reports/642515
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-017

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