Hustle <= 7.8.14.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'cta_label' Parameter

Summary

The Hustle – Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content[cta_label]' parameter in all versions up to, and including, 7.8.14.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By default only Administrators hold the hustle_edit_module capability, but the plugin's built-in Permissions screen allows administrators to delegate this capability to lower roles including Subscriber, enabling Subscriber-level exploitation on sites where that delegation has been configured.

Timeline

1. Oct 28, 2026, 6:45 AM UTCCVE published
2. Oct 28, 2026, 6:54 AM UTCFirst seen by cve.now
3. Oct 29, 2026, 1:29 AM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

4. Oct 29, 2026, 1:41 AM UTCRecord last updated

Affected versions

• wpmudev Hustle – Email Marketing, Lead Generation, Optins, Popups

  through 7.8.14.3

References 6