Description
WordPress Plugin Exit Popup Show is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Exit Popup Show version 1.0 is vulnerable.
Remediation
Edit the source code to ensure that input is properly sanitised or disable the plugin until a fix is available
References
Related Vulnerabilities
WordPress Plugin Backup and Restore WordPress-WPBackItUp Arbitrary File Deletion (1.15.3)
PrestaShop Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2011-4545)
Moodle Improper Authentication Vulnerability (CVE-2018-1082)