CVE-2026-15239
Simple CAPTCHA with Cloudflare Turnstile < 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key
CVSS Score
5.3
EPSS Score
0.1%
EPSS Percentile
2th
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.
| Vendor | unknown |
| Product | simple captcha with cloudflare turnstile |
| Published | Aug 7, 2026 |
| Last Updated | Aug 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Unknown / Simple CAPTCHA with Cloudflare Turnstile
0 < 1.42.0
References
Credits
Meher Sudhakar Abbireddi WPScan