Vulnerabilities and security researches forreally-simple-captcha really-simple-captcha

Jun 25, 2026

PSC, Research URL: PSC-2026-64669
Home page URL: Security reports for Really Simple CAPTCHA
Application: Really Simple CAPTCHA
Date: Jun 25, 2026
Research Description: CAPTCHA helper plugins sit close to form submission flows, generated challenge files, temporary tokens, and validation results used by other plugins. That makes them useful against automated abuse, but also security-sensitive because weak file handling or predictable challenge behavior can affect public forms. Really Simple CAPTCHA version 2.4 has successfully completed the CleanTalk Plugin Security Certification process and received PSC-2026-64669, confirming that the plugin was reviewed from a secure code perspective with attention to common exploitation paths for CAPTCHA generation, temporary file handling, token validation, and plugin integration boundaries.
Affected versions: Min 2.4, max 2.4.
Status: SAFE & CERTIFIED