CVE-2026-66674

MEDIUM 5.6

WordPress Simple Cloudflare Turnstile plugin <= 1.42.1 - Captcha Bypass vulnerability

CVSS Score

5.6

EPSS Score

0.0%

EPSS Percentile

0th

Unauthenticated Bypass Vulnerability in Simple Cloudflare Turnstile <= 1.42.1 versions.

CWE	CWE-290
Vendor	elliot sowers/ relywp
Product	simple cloudflare turnstile
Published	Sep 10, 2026
Last Updated	Sep 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

Elliot Sowers/ RelyWP / Simple Cloudflare Turnstile

n/a ≤ 1.42.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/simple-cloudflare-turnstile/vulnerability/wordpress-simple-cloudflare-turnstile-plugin-1-42-1-captcha-bypass-vulnerability?_s_id=cve

Credits

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program