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CVE-2024-2108: Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress <= 3.8.0 - Authenticated (Author+) Stored Cross-Site Scripting

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-29 · updated 2026-06-17
• Weakness: CWE-79

Description

The Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an image title embedded into a form in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• kstover Ninja Forms – The Contact Form Builder That Grows With You: before 3.8.1 — fixed in 3.8.1

How to fix

Upgrade to a fixed version: kstover Ninja Forms – The Contact Form Builder That Grows With You 3.8.1. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/3059780/ninja-forms/tags/3.8.1/includes/Fields/ListImage.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6a6eb430-cf86-4e13-a4f7-173fada9fddf?source=cve
• https://plugins.trac.wordpress.org/changeset/3059780/ninja-forms/tags/3.8.1/includes/Fields/ListImage.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6a6eb430-cf86-4e13-a4f7-173fada9fddf?source=cve

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