Description
WordPress Plugin Broken Link Manager is prone to multiple vulnerabilities, including cross-site scripting and SQL injection vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, to steal cookie-based authentication credentials, to compromise the application, access or modify data or to exploit vulnerabilities in the underlying database. WordPress Plugin Broken Link Manager version 0.4.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 0.6.0 or latest
References
http://cinu.pl/research/wp-plugins/mail_604dd4c86dca013f6e5e89751352f36d.html
https://wordpress.org/plugins/broken-link-manager/changelog/