RelyWP Simple Cloudflare Turnstile Plugin up to 1.38.0 on WordPress authentication bypass

Summaryinfo

A vulnerability classified as critical has been found in RelyWP Simple Cloudflare Turnstile Plugin up to 1.38.0 on WordPress. The affected element is an unknown function. The manipulation leads to authentication bypass. This vulnerability is traded as CVE-2026-40799. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in RelyWP Simple Cloudflare Turnstile Plugin up to 1.38.0 on WordPress. It has been rated as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a authentication bypass vulnerability. Using CWE to declare the problem leads to CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Unauthenticated Broken Authentication in Simple Cloudflare Turnstile <= 1.38.0 versions.

The weakness was shared by David Marín. The advisory is shared at patchstack.com. The identification of this vulnerability is CVE-2026-40799 since 04/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/16/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• RelyWP

Name

• Simple Cloudflare Turnstile Plugin

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38.0

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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