5.3
Medium
CVE-2026-15239 The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache…
Description
The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Simple CAPTCHA with Cloudflare Turnstile 1.42 | earliest → < 1.42.0 | 1.42.0 |