WordPress Build App Online plugin <= 1.0.23 - Missing Authorization to Arbitrary Post Author Modification via 'build-app-online-update-vendor-product' AJAX Action vulnerability

Missing Authorization to Arbitrary Post Author Modification via 'build-app-online-update-vendor-product' AJAX Action vulnerability discovered by WordFence in WordPress Plugin Build App Online versions = 1.0.23...

CVE-2026-3651

The CVE affects the Build App Online WordPress plugin (

CVE-2026-3651 Build App Online <= 1.0.23 - Missing Authorization to Arbitrary Post Author Modification via 'build-app-online-update-vendor-product' AJAX Action

The Build App Online plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 1.0.23. This is due to the plugin registering the 'build-app-online-update-vendor-product' AJAX action via wpajaxnopriv without proper authentication checks, capability verificatio...