15th October 2020
Risk level: Low
CVSS v3 Base Score: 5 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N)
CWE: Improper Access Control - Generic (CWE-284)
HackerOne report: 921717
Improper access control in Social app 0.3.1 allowed to read posts of any user.
The error has been fixed.
It is recommended that the Social app is upgraded to 0.4.0.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory: