CVE-2021-4374 — AI Deep Analysis Summary

🚨 **Essence**: Critical Broken Access Control in WordPress Automatic Plugin. 💥 **Consequences**: Attackers can modify critical WordPress options or create admin accounts without login.…

🛡️ **Root Cause**: **CWE-862** (Missing Authorization). The `process_form.php` script uses `update_option()` on all POST parameters without verifying user capabilities or authentication.…

📦 **Affected**: **WordPress Automatic Plugin** by ValvePress. 📉 **Versions**: **3.53.2 and below**. ⚠️ Note: Vulnerability persists even if the plugin is **deactivated** because it is a standalone script.

👑 **Privileges**: Full Admin Control. 📝 **Data**: Arbitrary option modification. 🆔 **Actions**: Create new administrator accounts, change critical site settings.…

📉 **Threshold**: **LOW**. 🔓 **Auth**: **Unauthenticated**. 🌐 **Network**: Remote (AV:N). 🖱️ **UI**: None required. 🚀 Easy to exploit via direct POST requests to the vulnerable endpoint.

🔍 **Public Exp**: **YES**. 📜 **PoC**: Available via Nuclei templates (`nuclei-templates`). 🧪 **Testing**: Docker-based testing packages exist on GitHub. 🌍 **Wild Exploitation**: High risk due to simplicity.

🔎 **Self-Check**: Scan for `/wp-content/plugins/wordpress-automatic/.../process_form.php`. 🛠️ **Tools**: Use **Nuclei** with CVE-2021-4374 template.…

🛡️ **Fix**: **YES**. Official patch released. 📥 **Action**: Update WordPress Automatic Plugin to version **> 3.53.2**. ✅ Verify vendor (ValvePress) updates. 🔄 Restart services after update.

🚧 **Workaround**: If patching is delayed, **deactivate** the plugin? ⚠️ **WARNING**: Data says it remains vulnerable even if deactivated! 🚫 **Mitigation**: Block access to `process_form.php` via WAF or `.htaccess`.…

🔥 **Urgency**: **CRITICAL** (CVSS 9.8). 🚨 **Priority**: **IMMEDIATE**. ⏱️ **Time**: Patch now. 📉 **Risk**: Unauthenticated remote code/config execution. 🆘 Do not ignore; active exploitation tools exist.