CVE-2026-42562

Published: May 9, 2026Modified: Jul 24, 2026Deferred

8.3

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Exploitability: 2.8 / Impact: 5.5

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-269

Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (4)

https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc

Source: security-advisories@github.com

https://github.com/alextselegidis/plainpad/issues/138

Source: security-advisories@github.com

https://github.com/alextselegidis/plainpad/releases/tag/1.1.1

Source: security-advisories@github.com

https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6

Source: security-advisories@github.com

Timeline

No history available yet.