Bold Timeline Lite < 1.2.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title' Parameter in 'bold_timeline_group' Shortcode

Description

The Bold Timeline Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' parameter in the 'bold_timeline_group' shortcode in all versions up to, and including, 1.2.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.