Description
Plainpad is a self hosted note taking app. Prior to version 1.1.1, Plainpad allows a low-privilege authenticated user to self-escalate to administrator by submitting admin=true in PUT /api.php/v1/users/{id}. The endpoint directly persists the admin attribute from user input, and the escalated account can immediately access admin-only routes. This issue has been patched in version 1.1.1.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
Affected products
- alextselegidis / plainpad< 1.1.1 – < 1.1.1
References
- VENDOR_ADVISORYhttps://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6
- MISChttps://github.com/alextselegidis/plainpad/issues/138
- PATCHhttps://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc
- PATCHhttps://github.com/alextselegidis/plainpad/releases/tag/1.1.1