Joomla! is a famous content management system (CWS), which enables to build websites and powerful online applications. A SQL injection was found in the CheckList 1.1.1 component for Joomla! via the title_search, name_search, tag_search, description_search, or filter_order parameter. This rule supports to defend the A6: Vulnerable and Outdated Components of OWASP Top 10 - 2021. Other reference:None