Hardening ACF for Security – Preventing Data Exposure in REST and AJAX
acfMany sites unintentionally expose ACF fields via REST and AJAX, so you should audit endpoints, disable public field keys, require authentication, and sanitize responses to prevent sensitive data exposure. Key Takeaways: Restrict ACF field exposure in the REST API by disabling show_in_rest for sensitive fields and filtering responses (use rest_prepare_* or rest_post_dispatch hooks) to strip […]
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