Description
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.
References6
- plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.…
- plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.…
- plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.…
- plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.…
- plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.…
- www.wordfence.com/threat-intel/vulnerabilities/id/e212b92a-e5f4…
Metrics
- CVSS 3.1
-
4.9
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 9 · as of 3 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.