Auth bypass in Mainwp Child
CVE-2026-12255
The MainWP Child WordPress plugin before 6.1.2 does not verify the requester's identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker…
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Mainwp Child — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-12255?
- CVE-2026-12255 is a high-severity vulnerability in Mainwp Child, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-07-27.
- How severe is CVE-2026-12255?
- High severity. CVSS v3 base score is 8.1 out of 10.