🔐 CVE Alert

CVE-2026-107710

MEDIUM 6.4

Hustle <= 7.8.14.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Module Content Title

CVSS Score
6.4
EPSS Score
0.2%
EPSS Percentile
10th

The Hustle – Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content[title]' 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. Exploitation requires that an administrator has explicitly granted the 'Create and Update Modules' (hustle_create / hustle_edit_module) capability to the attacker's role via the plugin's own Settings → Permissions feature; this delegation is not enabled by default.

CWE CWE-79
Vendor wpmudev
Product hustle – email marketing, lead generation, optins, popups
Published Oct 28, 2026
Last Updated Oct 28, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

wpmudev / Hustle – Email Marketing, Lead Generation, Optins, Popups
0 ≤ 7.8.14.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/a3ed1a2a-f9d5-4f34-8a8e-583ea7226df8?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/front/hustle-module-renderer.php#L181 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/front/hustle-module-renderer.php#L163 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/hustle-module-model.php#L569 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/hustle-modules-common-admin-ajax.php#L49 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wordpress-popup/tags/7.8.14.3/inc/front/hustle-module-front.php#L917 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3758337/wordpress-popup/trunk/inc/front/hustle-module-renderer.php

Credits

Wordfence PRISM