High 8.3Published May 9, 2026

CVE-2026-42562Plainpad: Privilege Escalation via Writable Admin Field in Profile Update (Access Control)

Updated under an hour ago (Oct 27, 2026, 9:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for alextselegidis plainpad

Exploited in the last 30 days

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: 8.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness (CWE): CWE-269
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

alextselegidis plainpad alextselegidis:plainpad (from the name)	before 1.1.1	CNA record

References

References

https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6	x-refsource-confirm
https://github.com/alextselegidis/plainpad/issues/138	x-refsource-misc
https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc	x-refsource-misc
https://github.com/alextselegidis/plainpad/releases/tag/1.1.1	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.