Auth bypass in Profilegrid
CVE-2026-16291
The ProfileGrid WordPress plugin before 5.9.9.8 does not verify that a notification belongs to the requesting user before deleting it, allowing any authenticated user such as a Subscriber to delete other users' notifications by enumerating notification identifiers.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Unknown Profilegrid — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-16291?
- CVE-2026-16291 is a medium-severity vulnerability in Profilegrid, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-02.
- How severe is CVE-2026-16291?
- Medium severity. CVSS v3 base score is 4.3 out of 10.