The Category Posts Widget is a popular WordPress plugin that allows users to display posts from specified categories in a widget format. It is often used to enhance the user experience by providing dynamic content related to specific categories. However, a critical vulnerability has been discovered—CVE-2025-1453—that allows attackers to exploit stored XSS within the widget’s settings. This vulnerability enables attackers with editor-level permissions to inject malicious JavaScript, leading to potential backdoor creation and full account takeover.
CVE-2025-1453 – Category Posts Widget – Stored XSS to JS Backdoor Creation – POC
