Medium severity · published Jun 15, 2026
CVE-2026-40799
WordPress Simple Cloudflare Turnstile plugin <= 1.38.0 - Broken Authentication vulnerability
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Unauthenticated Broken Authentication in Simple Cloudflare Turnstile <= 1.38.0 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Simple Cloudflare Turnstile · RelyWP
through 1.38.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40799
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40799
patchstack.com
https://patchstack.com/database/wordpress/plugin/simple-cloudflare-turnstile/vulnerability/wordpress-simple-cloudflare-turnstile-plugin-1-38-0-broken-authentication-vulnerability?_s_id=cve
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