Description
WordPress Plugin Subscriber by BestWebSoft 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 Subscriber by BestWebSoft version 1.3.4 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.3.5 or latest
References
https://packetstormsecurity.com/files/142118/WordPress-BestWebSoft-XSS-CSRF.html
Related Vulnerabilities
Apache Tomcat Improper Input Validation Vulnerability (CVE-2012-3544)
PostgreSQL Permissions, Privileges, and Access Controls Vulnerability (CVE-2010-1447)
WordPress Plugin WPS Child Theme Generator Directory Traversal (1.1)
WordPress Plugin Social Sharing-Sassy Social Share Cross-Site Scripting (3.3.25)