CVE-2026-42562

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Source

https://cve.org/CVERecord?id=CVE-2026-42562

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42562.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-42562

Aliases

GHSA-pvfv-wvpm-q6f6

Published

2026-05-09T19:09:48.862Z

Modified

2026-07-08T08:13:41.485490418Z

Severity

8.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L CVSS Calculator

Summary

Plainpad: Privilege Escalation via Writable Admin Field in Profile Update (Access Control)

Details

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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42562.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269"
    ]
}

References

Affected packages

Git / github.com/alextselegidis/plainpad

Affected ranges

Type

GIT

Repo

https://github.com/alextselegidis/plainpad

Events

Introduced

Fixed

9216a876d27b22c3d9259551636d803f7cb075fc

Fixed

ab27ad80801fdc8a84a65251eb19fa15c529fe97

Database specific

{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.1.1"
        }
    ]
}

Affected versions

1.*

1.0.0

1.0.0-alpha.1

1.0.0-beta.1

1.0.0-beta.2

1.0.0-beta.3

1.0.0-beta.4

1.1.0

1.1.0-alpha.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42562.json"