Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in weDevs WP ERP plugin <= 1.12.3 versions.

The WP ERP | Complete HR solution with recruitment & job listings | WooCommerce CRM & Accounting plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.3. This is due to missing or incorrect nonce validation on the handle_leave_calendar_filter, add_enable_disable_option_save, leave_policies, process_bulk_action, and process_crm_contact functions. This makes it possible for unauthenticated attackers to modify the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The ERP WordPress plugin before 1.12.4 does not properly sanitise and escape the `type` parameter in the `erp/v1/accounting/v1/people` REST API endpoint before using it in a SQL statement, leading to a SQL injection exploitable by high privilege users such as admin.

The ERP WordPress plugin before 1.12.4 does not sanitise and escape the employee_name parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.