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CVE-2023-37979: WordPress Ninja Forms Plugin <= 3.6.25 is vulnerable to Cross Site Scripting (XSS)

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-27 · updated 2026-06-17
• Weakness: CWE-79

Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Saturday Drive Ninja Forms Contact Form plugin <= 3.6.25 versions.

Affected products

• kstover Ninja Forms – The Contact Form Builder That Grows With You: before 3.6.26 — fixed in 3.6.26

How to fix

Upgrade to a fixed version: kstover Ninja Forms – The Contact Form Builder That Grows With You 3.6.26. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/173983/WordPress-Ninja-Forms-3.6.25-Cross-Site-Scripting.html
• https://patchstack.com/articles/multiple-high-severity-vulnerabilities-in-ninja-forms-plugin?_s_id=cve
• https://patchstack.com/database/vulnerability/ninja-forms/wordpress-ninja-forms-plugin-3-6-25-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
• http://packetstormsecurity.com/files/173983/WordPress-Ninja-Forms-3.6.25-Cross-Site-Scripting.html
• https://patchstack.com/articles/multiple-high-severity-vulnerabilities-in-ninja-forms-plugin?_s_id=cve
• https://patchstack.com/database/vulnerability/ninja-forms/wordpress-ninja-forms-plugin-3-6-25-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

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