CVE-2026-15239

Summary

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 Software

VendorProductVersion RangeStatus
UnknownSimple CAPTCHA with Cloudflare Turnstile0 < 1.42.0affected

Weaknesses

  • CWE-345 Insufficient Verification of Data Authenticity

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: partial

References