CVE-2021-25114 — AI Deep Analysis Summary

🚨 **Essence**: Blind SQL Injection in WordPress Plugin **Paid Memberships Pro**. <br>💥 **Consequences**: Attackers can execute malicious SQL statements, potentially stealing sensitive data or modifying site content.

🛡️ **Root Cause**: **CWE-89** (SQL Injection). <br>🔍 **Flaw**: The plugin fails to sanitize/escape the **`discount_code`** parameter in a REST route before using it in a SQL query.

📦 **Affected**: WordPress Plugin **Paid Memberships Pro**. <br>📉 **Versions**: All versions **before 2.6.7**.

🕵️ **Attacker Actions**: <br>1. Obtain **sensitive information** (DB dumps). <br>2. **Modify data** (corrupt records). <br>3. Execute **unauthorized admin operations**.

⚡ **Threshold**: **Low**. <br>🔓 **Auth**: Likely unauthenticated or low-privilege access required, as it targets a public-facing REST route involving discount codes.

📜 **Public Exp?**: **Yes**. <br>🔗 **PoC**: Available via **Nuclei templates** (ProjectDiscovery) and referenced in WPScan. Wild exploitation is possible.

🔎 **Self-Check**: <br>1. Scan for **Paid Memberships Pro** plugin. <br>2. Check version number (< 2.6.7). <br>3. Use Nuclei template `CVE-2021-25114.yaml` for automated detection.

✅ **Fixed?**: **Yes**. <br>🛠️ **Patch**: Update to **version 2.6.7** or later. The security release addresses the input validation flaw.

🚧 **No Patch Workaround**: <br>1. **Disable** the plugin immediately if update is impossible. <br>2. Implement **WAF rules** to block SQL injection patterns in the `discount_code` parameter.

🔥 **Urgency**: **HIGH**. <br>⏳ **Priority**: Patch immediately. Since it is a blind SQLi in a popular plugin, automated scanners and attackers are actively probing for this.