Block, Suspend, Report for BuddyPress < 3.6.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'link' Parameter

Description

The Block, Suspend, Report for BuddyPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link' parameter in versions up to and including 3.6.4. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with subscriber-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.