CVE-2026-42562
High · 8.3CVSS
8.3
EPSS
0.5%
Published
May 9, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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