Unauthenticated Broken Authentication in Simple Cloudflare Turnstile Plugin by WordPress
CVE-2026-40799

5.8MEDIUM

Key Information:

Vendor

WordPress
Status
Simple Cloudflare Turnstile
Vendor
CVE Published:
15 June 2026

What is CVE-2026-40799?

The Simple Cloudflare Turnstile plugin for WordPress is susceptible to an unauthenticated broken authentication flaw. This vulnerability allows unauthorized users to exploit the plugin, potentially leading to unauthorized actions on the website. Websites utilizing versions of the plugin before 1.38.0 should take immediate steps to secure their systems against this risk.

Affected Version(s)

Simple Cloudflare Turnstile <= 1.38.0

References

https://patchstack.com/database/wordpress/plugin/simple-c...
vdb-entry

CVSS V3.1

Score:
5.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

David MarĂ­n | Patchstack Bug Bounty Program
.