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NVD HIGH: CVE-2026-16145 — The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms plugin f...

·Source: NIST NVD

Updated:

Executive Summary

The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'action' parameter in all versions up to, and including, 5.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user acces

Analysis

The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'action' parameter in all versions up to, and including, 5.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The stored payload is written by any unauthenticated admin-ajax.php request whose action value matches an entry in the plugin's explicit-actions list, which is auto-populated for common form builders at activation and requires no authentication gate to reach the save path. CVSS Score: 7.2. Published: 2026-08-15T04:18:10.233.

Indicators of Compromise (1)

CVE (1)
CVE-2026-16145
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 15, 2026. Verified by: NIST.

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