Docmost is open-source collaborative wiki and documentation software. Prior to 0.80.1, authenticated users can store attacker-controlled avatarUrl values that are later reused by avatar cleanup without confinement to the intended directory on local-storage deployments. A low-privileged user can cause deletion of arbitrary local files or directories reachable by the Docmost service account.
This issue is fixed in version 0.80.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/docmost/docmost/commit/a573acedd0317f3472cb0f8b95f6aa1531531…
security-advisories@github.com
https://github.com/docmost/docmost/releases/tag/v0.80.1
security-advisories@github.com
https://github.com/docmost/docmost/security/advisories/GHSA-95f8-h5hf-8248
security-advisories@github.com