WordPress Simple Cloudflare Turnstile plugin <= 1.38.0 - Broken Authentication vulnerability

published 2026-06-15 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-36808

cvss: 5.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

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

Patch / fix

fixed in 1

RelyWP Simple Cloudflare Turnstile 1.38.1

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 4 mo ago (2026-06-15)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

RelyWP Simple Cloudflare Turnstile

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/simple-cloudflare-turnstile/vulnerability/wordpress-simple-cloudflare-turnstile-plu
vdb-entry

Sources

CVE List CVE-2026-40799
NVD CVE-2026-40799

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary