CVE-2026-39440 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: CWE-94 (Improper Control of Generation of Code). 🔍 **Flaw**: Improper code generation control. The plugin fails to sanitize inputs properly, allowing malicious code injection.

Q: Who is affected? (Versions/Components)

📦 **Affected**: WordPress Plugin **FunnelFormsPro**. 📅 **Version**: 3.8.1 and earlier versions. 🏢 **Vendor**: Funnelforms LLC.

Q: What can hackers do? (Privileges/Data)

💀 **Hacker Power**: Full Remote Code Execution. 🔓 **Privileges**: Can execute commands with the web server's privileges. 📊 **Data**: Complete compromise of server data. High severity (CVSS H).

Q: Is exploitation threshold high? (Auth/Config)

🔑 **Threshold**: Medium. 🔒 **Auth**: Requires **Low Privileges** (PR:L). 🌐 **Access**: Network Accessible (AV:N). ⚡ **Complexity**: Low (AC:L). No User Interaction needed (UI:N).

Q: Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exploit**: No PoC provided in data. 📉 **Status**: References point to Patchstack. Wild exploitation risk exists due to Low Complexity, but specific exploit code is not listed here.

Q: How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for **FunnelFormsPro** plugin. 📏 **Version**: Check if version is **≤ 3.8.1**. 🛠️ **Tool**: Use WordPress security scanners or Patchstack database checks.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fix**: Yes, official patch available. 📝 **Action**: Update FunnelFormsPro to the latest version. 🔗 **Source**: Patchstack database entry confirms vulnerability and fix path.

Q: What if no patch? (Workaround)

🚧 **No Patch Workaround**: Disable the plugin immediately. 🔒 **Restrict**: Limit access to WordPress admin area. 🛡️ **WAF**: Use Web Application Firewall to block injection patterns.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. ⚠️ **Priority**: High. 📢 **Reason**: CVSS Score indicates High Impact. RCE allows total server takeover. Patch immediately!

Updated May 06, 2026 CVSS 9.9 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A Code Injection flaw in FunnelFormsPro. <br>💥 **Consequences**: Leads to Remote Code Execution (RCE). Attackers can run arbitrary code on the server.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: CWE-94 (Improper Control of Generation of Code). <br>🔍 **Flaw**: Improper code generation control. The plugin fails to sanitize inputs properly, allowing malicious code injection.

Q3Who is affected? (Versions/Components)

📦 **Affected**: WordPress Plugin **FunnelFormsPro**. <br>📅 **Version**: 3.8.1 and earlier versions. <br>🏢 **Vendor**: Funnelforms LLC.

Q4What can hackers do? (Privileges/Data)

💀 **Hacker Power**: Full Remote Code Execution. <br>🔓 **Privileges**: Can execute commands with the web server's privileges. <br>📊 **Data**: Complete compromise of server data. High severity (CVSS H).

Q5Is exploitation threshold high? (Auth/Config)

🔑 **Threshold**: Medium. <br>🔒 **Auth**: Requires **Low Privileges** (PR:L). <br>🌐 **Access**: Network Accessible (AV:N). <br>⚡ **Complexity**: Low (AC:L). No User Interaction needed (UI:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exploit**: No PoC provided in data. <br>📉 **Status**: References point to Patchstack. Wild exploitation risk exists due to Low Complexity, but specific exploit code is not listed here.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for **FunnelFormsPro** plugin. <br>📏 **Version**: Check if version is **≤ 3.8.1**. <br>🛠️ **Tool**: Use WordPress security scanners or Patchstack database checks.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fix**: Yes, official patch available. <br>📝 **Action**: Update FunnelFormsPro to the latest version. <br>🔗 **Source**: Patchstack database entry confirms vulnerability and fix path.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: Disable the plugin immediately. <br>🔒 **Restrict**: Limit access to WordPress admin area. <br>🛡️ **WAF**: Use Web Application Firewall to block injection patterns.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>⚠️ **Priority**: High. <br>📢 **Reason**: CVSS Score indicates High Impact. RCE allows total server takeover. Patch immediately!

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Vulnerability detail Full AI analysis (login) Funnelforms LLC CWE-94