Renaming an item to a protected hidden folder deletes the target (NC-SA-2020-017)
15th July 2019
Risk level: Low
CVSS v3 Base Score: 6.8 (AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H)
HackerOne report: 642515
Improper access control in Groupfolders app 4.0.3 allowed to delete hidden directories when when renaming an accessible item to the same name.
- Nextcloud Groupfolders < 4.0.4 (CVE-2020-8153)
The error has been fixed.
It is recommended that the Groupfolders app is upgraded to 4.0.4.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
- Francesco MORO(sinotto) - Vulnerability discovery and disclosure.
This advisory is licensed CC BY-SA 4.0.