Auth bypass in Mainwp Child

CVE-2026-27366

Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Mainwp Child — versions n/a

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-27366?: CVE-2026-27366 is a high-severity vulnerability in Mainwp Child, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-06-25.
How severe is CVE-2026-27366?: High severity. CVSS v3 base score is 7.5 out of 10.