Anti-spam plugins protect login, registration, comment, and public form paths. That makes them useful against automated abuse, but also security-sensitive because enforcement failures can leave high-value endpoints exposed or block legitimate visitors from expected workflows. Advanced Google reCAPTCHA version 5.39 has successfully completed the CleanTalk Plugin Security Certification process and received PSC-2026-64672, confirming that the plugin was reviewed from a secure code perspective with attention to common exploitation paths for reCAPTCHA validation, login protection, public form handling, and anti-spam configuration.
| Name of | Advanced Google reCAPTCHA |
| Version | 5.39 |
| Active installations | 200,000+ |
| Description | Captcha protection against spam comments and brute force login attacks using Google reCAPTCHA. |
| Security | Successfully tested for: SQL Injection (SQLi) Cross-Site Scripting (XSS) – Stored and Reflected Cross-Site Request Forgery (CSRF) Authentication Vulnerabilities Authentication Bypass Exploits Privilege Escalation Buffer Overflow Denial-of-Service (DoS) vectors Data Leakage Vulnerabilities Insecure Dependency Usage Remote Code Execution (RCE) Risks Unauthorized File Access Insufficient Injection Protection Information Disclosure via Misconfigured Endpoints |
| CleanTalk Certification | Proudly earned the “Plugin Security Certification” (PSC) from CleanTalk, indicating adherence to stringent security standards. |
| Additional Information | Use Advanced Google reCAPTCHA with confidence backed by the “Plugin Security Certification” (PSC). Always verify the latest plugin details and keep WordPress core and dependent components up to date. |
| Plugin Security Certification by CleanTalk |  |
| Logo of the plugin |  |
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Key Features
Advanced Google reCAPTCHA Advanced Google reCAPTCHA adds CAPTCHA protection to WordPress login, registration, comments, and other public interaction points. It stores Google site and secret keys, renders CAPTCHA scripts, validates visitor responses, and controls where protection is enforced. These capabilities matter for security because the plugin touches authentication related paths, public forms, third-party verification, administrator settings, and visitor facing scripts. Secure implementation must protect secret keys, validate requests consistently, escape settings before rendering, prevent unauthorized configuration changes, and fail safely when the external verification service is unavailable.
Security Assurance
The CleanTalk Plugin Security Certification evaluation focuses on defensive form protection behavior for plugins that enforce CAPTCHA checks on public and authentication related flows. For reCAPTCHA plugins, common abuse patterns include bypassing validation on login or registration, exposing secret keys, CSRF against protection settings, stored XSS through badge or script settings, or inconsistent enforcement across enabled forms. The review validates that settings are restricted to authorized users, that CAPTCHA responses are checked through expected flows, and that public script output is rendered safely. Particular attention is paid to login protection, comment handling, key storage, verification responses, settings forms, and compatibility with anonymous visitor traffic.
The plugin has been successfully tested for:
✅ Information Leakage Vulnerabilities
✅ SQL Injection Vulnerabilities
✅ Cross-Site Scripting (XSS) Attacks
✅ Cross-Site Request Forgery (CSRF) Attacks
✅ Authentication and Authentication Bypass Vulnerabilities
✅ Privilege Escalation Vulnerabilities
✅ Buffer Overflow Vulnerabilities
✅ Denial-of-Service (DoS) Vulnerabilities
✅ Data Leakage Vulnerabilities
✅ Insecure Dependencies
✅ Code Execution Vulnerabilities
✅ File Unauthorized Access Vulnerabilities
✅ Insufficient Injection Protection
Conclusion
With PSC-2026-64672, Advanced Google reCAPTCHA version 5.39 demonstrates strong baseline security for the workflows that matter most in anti-spam and login protection plugins: protecting secret keys, enforcing CAPTCHA checks, safely rendering scripts, and keeping configuration changes under administrator control. This certification helps site owners reduce automated abuse while preserving predictable access for legitimate users. As a best practice, restrict CAPTCHA keys to the intended domain, rotate keys when administrators change, and test every protected form after configuration updates.
Note: The date and certification information may change over time. It is advisable to verify the latest details on the plugin developer’s website.
