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

Medium 5.5 CWE-79Fixed in 7.8.14.4
ID
WPSEC-2026-1447
Plugin
Hustle – Email Marketing, Lead Generation, Optins, Popups (wordpress-popup)
Affected
all versions before 7.8.14.4
Remediation
Update to 7.8.14.4 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-79
Usage
Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-22
Attack surface
Hustle – Email Marketing, Lead Generation, Optins, Popups on WPSec AttackSurface
Fix released
Published

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

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