ECS WordPress plugin vulnerabilities

The ECS WordPress plugin before version 4.3.8 does not have capability or ownership checks on its dynamic repeater actions, relying only on a nonce available to any user who can open the page builder. This allows users with a contributor-level account or above to read, alter, and delete the binding configuration of posts they do not own and to change the plugin's site-wide presets.

The ECS WordPress plugin before version 4.3.8 does not perform capability or object-ownership checks on its Dynamic Repeater AJAX handlers (gated only by a capability-agnostic nonce that any edit_posts user obtains from the Elementor editor). A Contributor can write a data-source binding into any post, including admin-authored pages, whose attacker-controlled values are rendered into a widget's repeater output without sanitization, executing JavaScript in the session of any visitor or administrator who views the page.

The ECS WordPress plugin before version 4.3.8 does not check the post status or any capability when rendering an Elementor document requested through one of its AJAX actions. This allows unauthenticated users to retrieve the rendered content of unpublished (private, draft, pending) documents by supplying their identifier.