What is CVE-2026-15930?

CVE-2026-15930 is a critical-severity vulnerability in Simple Membership, classified under Missing Authorization. CVSS score: 9.4/10. Published 2026-08-03.

How severe is CVE-2026-15930?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Auth bypass in Simple Membership

CVE-2026-15930

The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the pri…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

Affected products

Unknown Simple Membership — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-15930?: CVE-2026-15930 is a critical-severity vulnerability in Simple Membership, classified under Missing Authorization. CVSS score: 9.4/10. Published 2026-08-03.
How severe is CVE-2026-15930?: Critical severity. CVSS v3 base score is 9.4 out of 10.