Security and SSL enforcement plugins operate across some of the most sensitive trust boundaries in WordPress because they can influence HTTPS migration, redirect behavior, security headers, login protection, two-factor authentication, vulnerability detection, and site hardening controls. Weaknesses in this class of plugin can affect confidentiality, session safety, authentication integrity, administrative access control, or the reliability of security configuration across the entire site. Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) version 9.5.10.1 has successfully completed the CleanTalk Plugin Security Certification process and received PSC-2026-64653, confirming that the plugin was reviewed from a secure code perspective with attention to the most common exploitation paths for SSL, hardening, login protection, vulnerability monitoring, and WordPress security plugins.
| Name of | Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) |
| Version | 9.5.10.1 |
| Active installations | 3+ million |
| Description | Really Simple Security helps WordPress site owners improve website security through SSL certificate generation, HTTPS migration, 301 HTTPS redirection, SSL enforcement, secure cookies, vulnerability detection, login protection, two-factor authentication, and essential WordPress hardening features. |
| Security | Successfully tested for: SQL Injection (SQLi) Cross-Site Scripting (XSS) – Stored & 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 Really Simple Security with confidence backed by the “Plugin Security Certification” (PSC). Always verify the latest plugin details and keep WordPress core, security extensions, themes, plugins, and server-side components up to date. |
| Plugin Security Certification by CleanTalk |  |
| Logo of the plugin |  |
PSC by CleantalkJoin the community of developers who prioritize security. Highlight your plugin in the WordPress catalog.
Key Features
Really Simple Security provides a modular security layer for WordPress sites that need SSL enforcement, HTTPS migration, login protection, vulnerability awareness, and baseline hardening without excessive operational complexity. The plugin supports one-click SSL migration, 301 HTTPS redirects through PHP or .htaccess, secure cookie handling, Let’s Encrypt certificate generation where supported by the hosting environment, server health checks, vulnerability detection for WordPress core, plugins, and themes, and login protection through two-factor authentication for selected user roles. It also includes hardening controls such as preventing code execution in the uploads folder, disabling XML-RPC, reducing user enumeration, disabling directory browsing, and restricting risky usernames. These capabilities matter from a security perspective because they touch several high-impact WordPress surfaces: transport security, redirect rules, authentication workflows, user enumeration resistance, filesystem hardening, server configuration checks, vulnerability notification logic, and admin-side security settings.
Security Assurance
The CleanTalk Plugin Security Certification evaluation for WordPress security and SSL plugins focuses on the risks created when a plugin controls site-wide security behavior, login policy, redirects, vulnerability notifications, hardening settings, and server-facing configuration changes. In this class of software, common abuse patterns include attempts to bypass capability checks around security settings, trigger unauthorized configuration changes through CSRF, manipulate redirect or SSL enforcement behavior, weaken login protection, abuse REST or AJAX settings endpoints, expose sensitive diagnostic or vulnerability data, or exploit unsafe handling of .htaccess, wp-config.php, uploads hardening, and server health checks. The review validates that privileged security actions are protected by appropriate roles and capability checks, that state-changing requests use nonce validation, and that security configuration values are sanitized and safely applied across storage, rendering, and server-side enforcement contexts. Particular attention is paid to authentication protection, secure redirect handling, hardening rule integrity, safe diagnostics output, REST and AJAX authorization, file and configuration safety, and preventing security convenience features from becoming privilege escalation, disclosure, or site-wide misconfiguration risks.
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 & 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-2026-64653, Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) version 9.5.10.1 demonstrates a strong baseline security posture for the workflows that matter most in WordPress security tooling: enforcing HTTPS, managing SSL migration, protecting login flows, applying hardening controls, monitoring vulnerabilities, handling security diagnostics, and protecting administrative configuration from unauthorized changes. This certification helps site owners and development teams reduce risk when deploying a security plugin that can influence authentication behavior, transport security, server rules, and site-wide hardening policy. As a best practice, restrict who can manage security settings, test redirect and SSL behavior after server or CDN changes, review 2FA enforcement by role, monitor vulnerability notifications, validate hardening rules after updates, and keep WordPress core, Really Simple Security, themes, plugins, and server-side components up to date.
Note: The date and certification information may change over time. It is advisable to verify the latest details on the plugin developer’s website.