CVE-2021-24194
Low privileged users can use the AJAX action ‘cp_plugins_do_button_job_later_callback’ in the Login Protection – Limit Failed Login Attempts WordPress plugin before 2.9, to install any plugin (including a specific version) from the WordPress repository, as well as activate arbitrary plugin from then blog, which helps attackers install vulnerable plugins and could lead to more critical vulnerabilities like RCE.
Source: CVE-2021-24194