CVE-2026-80437
Received Received - Intake

Unauthenticated Shortcode Execution in Ninja Forms

Publication date: 2026-09-06

Last updated on: 2026-09-06

Assigner: WPScan

Description
The Ninja Forms WordPress plugin from 3.14.10 before 3.15.2 does not prevent shortcodes in request-derived values from being executed when it substitutes them into content it later processes for shortcodes, allowing unauthenticated users to run any shortcode registered on the site.

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Meta Information

Published
2026-09-06
Last Modified
2026-09-06
Generated
2026-09-06
AI Q&A
2026-09-06
EPSS Evaluated
N/A
NVD
CVE-2026-80437
EUVD
EUVD-2026-72092

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wpninjas ninja_forms From 3.14.10 (inc) to 3.15.2 (exc)
wpninjas ninja_forms 3.15.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

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Executive Summary

This vulnerability in the Ninja Forms WordPress plugin allows unauthenticated users to execute arbitrary shortcodes by injecting them into request-derived values like IP or Referer headers. The plugin fails to block shortcode execution when substituting these values into processed content.

Detection Guidance

Check if your Ninja Forms plugin version is between 3.14.10 and 3.15.1. Use WordPress admin panel or run: wp plugin list | grep ninja-forms. If vulnerable, update to version 3.15.2 or later immediately.

Impact Analysis

Attackers could exploit this to run any registered shortcode on your site without authentication, potentially leading to unauthorized actions, data theft, or site defacement. Exploitation requires your site to display request-derived values.

Mitigation Strategies

Update Ninja Forms to version 3.15.2 or higher. Disable shortcode execution in request-derived values if possible. Monitor for unusual shortcode activity in logs. Consider temporary removal of affected headers from display.

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