wpfunnels Plugin Vulnerability Fix Summary Vulnerability Overview The screenshot displays the changelog for version 3.0.0 of the plugin, released on August 26, 2021. It reveals a critical XSS (Cross-Site Scripting) vulnerability fix in the file. The previous version directly output user-controllable variables—such as button text, URL, and alignment—without proper sanitization or escaping, allowing attackers to inject malicious scripts. Affected Scope Plugin: wpfunnels File: Functionality: Button settings within the Opt-in Form feature Fix Implementation The developers introduced WordPress security functions to sanitize output: Use to clean and sanitize text content Use to properly escape URLs Use to sanitize attribute values Key Code Changes (Diff) The following code snippets illustrate the vulnerability (removed, red) and the corresponding fix (added, green): (Note: The screenshot also shows identical fixes applied within tags, following the same security pattern.)