CVE-2022-4716: 
WordPress vulnerability analysis and mitigation

The WP Popups WordPress plugin before version 2.1.4.8 contains a stored Cross-Site Scripting (XSS) vulnerability identified as CVE-2022-4716. The vulnerability was discovered and publicly disclosed on December 28, 2022. This security issue affects the WP Popups Lite plugin for WordPress installations (WPScan, CVE Mitre).

The vulnerability stems from improper validation and escaping of shortcode attributes before they are output back to the page. The CVSS score for this vulnerability is 6.8 (medium severity). The issue is classified under CWE-79 and falls into the OWASP Top 10 category A7: Cross-Site Scripting (XSS) (WPScan).

Users with privileges as low as contributor can exploit this vulnerability to perform Stored Cross-Site Scripting attacks against high-privilege users such as administrators. This could potentially lead to unauthorized actions being performed with administrator privileges (WPScan).

A proof of concept exploit has been documented using the shortcode: [spu-facebook width='" onmouseover="alert(1)" style="background:red;width:100px;height:100px;"']. The vulnerability can be exploited by users with contributor-level access or higher (WPScan).

The vulnerability has been fixed in version 2.1.4.8 of the WP Popups plugin. Users are advised to update to this version or later to mitigate the security risk (WPScan).