vulnerability
WordPress Plugin: ninja-forms: CVE-2021-24381: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:M/Au:S/C:N/I:P/A:N) | Sep 27, 2021 | May 15, 2025 | Apr 30, 2026 |
Severity
3
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
Sep 27, 2021
Added
May 15, 2025
Modified
Apr 30, 2026
Description
The Ninja Forms Contact Form WordPress plugin before 3.5.8.2 does not sanitise and escape the custom class name of the form field created, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
Solution
ninja-forms-plugin-cve-2021-24381
References
Rapid7 Labs
2026 Global Threat Landscape Report
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