Vulnerability Description
The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.7 does not verify that the requester is authorized to edit the targeted user account in the update-user action of its front-end Forms module; it only checks a capability when the submitted role is administrator or super_admin. On a site that exposes a publicly reachable front-end form whose user-update action targets an existing administrator (a fixed target, or one mapped to a visitor-submitted field) and maps the password to a visitor-submitted field, an unauthenticated visitor can overwrite that administrator's password and take over the account. The default target is the submitting user, so exploitation depends on the form being configured to target another account.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-12526?
CVE-2026-12526 is a vulnerability with a CVSS score of 8.1 (HIGH). The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.7 does not verify that the requester is authorized to edit the targeted user account in the update-user action of its front-end Forms...
How severe is CVE-2026-12526?
CVE-2026-12526 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12526?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.