WordPress Create Block Theme plugin < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite) vulnerability

Admin+ PHP Code Injection via Pattern Save Multisite vulnerability discovered by Pavan Saxena Rootkid in WordPress Plugin Create Block Theme versions 2.10.0...

CVE-2026-16623

The CVE concerns the Create Block WordPress plugin (before 2.10.0). It fails to properly escape user input when writing to a generated PHP pattern file, enabling a multisite subsite administrator—who has the gating capability for this action but lacks the PHP file editing capability—to inject and...