CVE-2026-80467: Advanced Custom Fields: Extended 0.9.2.2 - 0.9.2.6 - Unauthenticated Privilege Escalation via Front-End User Insert Action
The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.7 does not restrict the role submitted through its front-end user forms to the roles the form actually offers, and its safeguard against privileged roles is incomplete, allowing unauthenticated visitors to register an account with elevated capabilities and then escalate it to administrator.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress plugin: Advanced Custom Fields: Extendedto a version that resolves this vulnerability.Fixed in 0.9.2.7 - Compensating control
Until upgraded, restrict access to the Advanced Custom Fields: Extended front-end user forms (e.g., via network/WAF/ACL rules) to reduce exposure to unauthenticated account creation and role escalation attempts.
Event History
Frequently Asked Questions
Does an attacker need an existing account to exploit this issue?
No. An unauthenticated visitor can use the affected front-end user registration functionality to create an account with elevated capabilities, then escalate it to administrator.
What version should be used to remediate the issue?
Update Advanced Custom Fields: Extended to version 0.9.2.7 or later. Versions before 0.9.2.7 are affected.