PLUGIN SECURITY
Is Simple Cloudflare Turnstile safe?
Add Cloudflare Turnstile to WordPress, WooCommerce, Contact Forms & more. The user-friendly, privacy-preserving reCAPTCHA alternative. 100% free!
What this plugin does
- Slug:
simple-cloudflare-turnstile - Author: Elliot Sowersby / RelyWP
- 200000+ active installs
- 94/100 rating (263 reviews on wordpress.org)
- 3464411 all-time downloads
- On WordPress.org since 2022-10-15
captchacloudflareprotectspamturnstile
Maintenance status
- Latest known version: 1.42.1
- Last updated: 2026-10-31 6:02pm GMT
- Tested up to WordPress: 7.1.4
- Max supported PHP (analyzed): 8.4
Known vulnerabilities
10 known CVEs on file for Simple Cloudflare Turnstile. Reported between 2023 and 2026.
| CVE | Vulnerability | Type | Severity | Affected | Fixed in | Published | Status |
|---|---|---|---|---|---|---|---|
| CVE-2026-119498 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.44.5 | — | Medium 5.3 | < 1.44.5 | 1.44.5 | 2026-11-07 | ⚠ update needed |
| CVE-2026-93900 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.44.4 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium 6.4 | < 1.44.4 | 1.44.4 | 2026-11-04 | ⚠ update needed |
| CVE-2026-57775 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.44.2 | — | Medium 5.3 | < 1.44.2 | 1.44.2 | 2026-11-03 | ⚠ update needed |
| CVE-2026-39741 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.44.1 | — | Medium 5.3 | < 1.44.1 | 1.44.1 | 2026-10-29 | ⚠ update needed |
| — | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] <= 1.44.3 (unfixed) | — | Unknown | < 1.44.3 | 1.44.3 | 2026-10-29 | ⚠ update needed |
| CVE-2026-66674 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.42.3 | Authentication Bypass by Spoofing | Medium 5.6 | < 1.42.3 | 1.42.3 | 2026-09-08 | ⚠ update needed |
| CVE-2026-66632 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.42.3 | Improper Control of Generation of Code ('Code Injection') | Medium 6.5 | < 1.42.3 | 1.42.3 | 2026-09-08 | ⚠ update needed |
| CVE-2026-85116 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] >= 1.2.2 - < 1.42.3 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | Medium 6.5 | 1.2.2–1.42.3 | 1.42.3 | 2026-09-08 | ⚠ update needed |
+ 3 more known vulnerabilities
| CVE | Vulnerability | Type | Severity | Affected | Fixed in | Published | Status |
|---|---|---|---|---|---|---|---|
| CVE-2026-15239 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.42.0 | Insufficient Verification of Data Authenticity | Medium 5.3 | < 1.42.0 | 1.42.0 | 2026-08-07 | ✓ fixed in latest |
| CVE-2026-40799 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.38.1 | Authentication Bypass Using an Alternate Path or Channel | Medium 5.8 | < 1.38.1 | 1.38.1 | 2026-05-08 | ✓ fixed in latest |
| CVE-2023-5135 | Simple CAPTCHA with Cloudflare Turnstile [simple-cloudflare-turnstile] < 1.23.2 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium 5.4 | < 1.23.2 | 1.23.2 | 2023-09-22 | ✓ fixed in latest |
How to fix it
Keep Simple Cloudflare Turnstile updated — 1.42.1 is the latest version on wordpress.org, and each CVE above lists the exact release that fixed it ("Fixed in").
This is the plugin's full known vulnerability history, not a scan of any specific installation — run a free scan of your own site to check your exact installed version.
Safer / more established alternatives
- SiteGuard WP Plugin — 600000+ active installs — 86/100 (15) — max PHP 8.4
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Check your own WordPress site
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