CVE-2026-77009: CWE-94 Improper Control of Generation of Code ('Code Injection') in WatchMan-Site7

CVE-2026-77009 is a code injection vulnerability (CWE-94) in the WatchMan-Site7 WordPress plugin versions up to 4.2.0. The plugin's debugging console lacks proper access controls and executes PHP code supplied by authenticated users. This enables attackers with any authenticated role to execute arbitrary code remotely, resulting in complete confidentiality, integrity, and availability impact on the affected system. The vulnerability has a CVSS 3.1 base score of 9.9, indicating critical severity. No official patch or remediation guidance is currently available from the vendor, and no known exploits are reported in the wild.

An attacker with any authenticated user privileges, including subscriber-level access, can execute arbitrary PHP code on the server hosting the vulnerable plugin. This can lead to full system compromise, including data theft, modification, or destruction, and potential takeover of the underlying server environment.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the debugging console by limiting authenticated user roles or disabling the plugin if possible.