CVE-2024-3559
Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_content]
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the 'cfs[post_content]' parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | mgibbs189 |
| Product | custom field suite |
| Published | Jun 12, 2024 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for mgibbs189 custom field suite
Be the first to know when new medium vulnerabilities affecting mgibbs189 custom field suite are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
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
mgibbs189 / Custom Field Suite
0 ≤ 2.6.7
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/56d8af3b-6c00-49ed-872a-64f7bebb470b?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/custom-field-suite/trunk/includes/form.php#L69 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/custom-field-suite/trunk/includes/api.php#L282
Credits
Jack Taylor