WordPress Plugin WP-UserOnline URL HTML Injection (2.62)
Description
WordPress Plugin WP-UserOnline is prone to an HTML injection vulnerability because it fails to properly sanitize user-supplied input. Attacker-supplied HTML and script code could be executed in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user; other attacks are also possible. WordPress Plugin WP-UserOnline versions prior to 2.70 are vulnerable.
Remediation
Update to plugin version 2.70 or latest