WPForms, a widely-used WordPress plugin for creating forms, has been found to contain a critical Stored Cross-Site Scripting (XSS) vulnerability, identified as CVE-2024-11223. This flaw allows an attacker with editor-level access to inject malicious JavaScript code into the settings of the “Number Slider” field in a form. When the form is viewed or submitted, the malicious script executes, potentially creating a backdoor and allowing the attacker to escalate their privileges. With over 6 million active installations, this vulnerability presents a significant security risk for WordPress sites using WPForms.
CVE-2024-11223 – WPForms – Stored XSS to JS backdoor creation – POC
