# Hustle – Email Marketing, Lead Generation, Optins, Popups <= 7.8.14.3 - Authenticated (Custom-Access+) Stored Cross-Site Scripting via CTA Button Label and Module Title

- **ID:** WPSEC-2026-1447
- **Plugin:** Hustle – Email Marketing, Lead Generation, Optins, Popups (`wordpress-popup`), https://wordpress.org/plugins/wordpress-popup/
- **Affected versions:** all versions before 7.8.14.4
- **Fixed in:** 7.8.14.4 (Update to 7.8.14.4 or later.)
- **Severity:** Medium 5.5 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Medium, affected versions Medium (as of 2026-10-22)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/wordpress-popup
- **Fix released:** 2026-10-21
- **Published:** 2026-10-22
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1447/

## Description

The Hustle plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the module CTA button label and the module title in all versions up to, and including, 7.8.14.3, due to stripcslashes() being applied to the CTA label after it was sanitized with wp_kses, and to the module title being placed in the wrapper aria-label attribute without escaping. This makes it possible for authenticated attackers who have been granted access to edit Hustle modules to inject arbitrary web scripts in pages that execute whenever a user accesses a page displaying the module.

## References

- https://wpsec.com/vuln/WPSEC-2026-1447/
- https://plugins.svn.wordpress.org/wordpress-popup/tags/7.8.14.4/
- https://wordpress.org/plugins/wordpress-popup/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1447/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.