Captcha by Yandex for Contact Form 7 Security & Risk Analysis

wordpress.org/plugins/captcha-by-yandex-for-contact-form-7

Add antispam Yandex SmartCaptcha for your forms with Contact Form 7

2K active installs v1.2.7 PHP 7.4+ WP 5.0+ Updated Jan 12, 2026
captchacontact-form-7%d1%8f%d0%bd%d0%b4%d0%b5%d0%ba%d1%81-%d0%ba%d0%b0%d0%bf%d1%87%d0%b0yandexyandex-captcha
100
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is Captcha by Yandex for Contact Form 7 Safe to Use in 2026?

Generally Safe

Score 100/100

Captcha by Yandex for Contact Form 7 has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 2mo ago
Risk Assessment

The plugin "captcha-by-yandex-for-contact-form-7" v1.2.7 exhibits a generally good security posture based on the static analysis provided. The absence of AJAX handlers, REST API routes, shortcodes, and cron events significantly limits its attack surface. The code also demonstrates strong practices regarding SQL queries, exclusively using prepared statements, and a high percentage of properly escaped output. Nonce checks are present, further reinforcing secure data handling.

Key Concerns

  • External HTTP requests detected
  • Unsanitized paths in taint flows
  • Some output not properly escaped
  • No capability checks for entry points
Vulnerabilities
None known

Captcha by Yandex for Contact Form 7 Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Code Analysis
Analyzed Mar 16, 2026

Captcha by Yandex for Contact Form 7 Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
10
85 escaped
Nonce Checks
1
Capability Checks
0
File Operations
0
External Requests
2
Bundled Libraries
0

Output Escaping

89% escaped95 total outputs
Data Flows
2 unsanitized

Data Flow Analysis

2 flows2 with unsanitized paths
load (controller\class-cfyc-service.php:156)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Captcha by Yandex for Contact Form 7 Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 5
actionadmin_noticesbootstrap.php:110
actionwpcf7_initcontroller\class-cfyc-common.php:48
filterwpcf7_spamcontroller\class-cfyc-common.php:49
actionwpcf7_initcontroller\class-cfyc-common.php:58
actionwpcf7_admin_initcontroller\class-cfyc-common.php:62
Maintenance & Trust

Captcha by Yandex for Contact Form 7 Maintenance & Trust

Maintenance Signals

WordPress version tested6.8.5
Last updatedJan 12, 2026
PHP min version7.4
Downloads8K

Community Trust

Rating90/100
Number of ratings4
Active installs2K
Developer Profile

Captcha by Yandex for Contact Form 7 Developer Profile

stasionok

4 plugins · 5K total installs

76
trust score
Avg Security Score
96/100
Avg Patch Time
183 days
View full developer profile
Detection Fingerprints

How We Detect Captcha by Yandex for Contact Form 7

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/captcha-by-yandex-for-contact-form-7/css/admin.css/wp-content/plugins/captcha-by-yandex-for-contact-form-7/css/frontend.css/wp-content/plugins/captcha-by-yandex-for-contact-form-7/js/admin.js/wp-content/plugins/captcha-by-yandex-for-contact-form-7/js/frontend.js
Script Paths
https://smartcaptcha.cloud.yandex.ru/captcha.js?render=onload&onload=cfycOnloadFunction
Version Parameters
captcha-by-yandex-for-contact-form-7/css/admin.css?ver=captcha-by-yandex-for-contact-form-7/css/frontend.css?ver=captcha-by-yandex-for-contact-form-7/js/admin.js?ver=captcha-by-yandex-for-contact-form-7/js/frontend.js?ver=

HTML / DOM Fingerprints

CSS Classes
cfyc-captcha-containersmart-captcha
Data Attributes
data-sitekey
JS Globals
cfycCaptchaReadyEventcfycCaptchaLoadedcfycOnloadFunctioncfycLoad
Shortcode Output
<div class="smart-captcha cfyc-captcha-container"
FAQ

Frequently Asked Questions about Captcha by Yandex for Contact Form 7