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Vulnerability record · CVE-2026-15930 · published 3 August 2026

CVE-2026-15930: Missing authorization vulnerability

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 primary administrator's account data (including the email address) and take over that account through the password reset flow.

9.4 CVSS 3.1 Critical EPSS 0.42% · top 66.4% CWE-862 · Missing authorization Deferred
9.4CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
26 Aug 2026Last modified by NVD

Description

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 primary administrator's account data (including the email address) and take over that account through the password reset flow.

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

References

LinkTags
https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5/

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Source: NIST National Vulnerability Database (record CVE-2026-15930), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.