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CVE-2025-39410 — AI Deep Analysis Summary

CVSS 9.8 · Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Critical PHP Object Injection in WordPress Plugin. 📉 **Consequences**: Attackers can execute arbitrary code, leading to full server compromise, data theft, and site defacement.…

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data).…

Q3Who is affected? (Versions/Components)

🎯 **Affected**: WordPress Plugin: **Smart Sections Theme Builder - WPBakery Page Builder Addon**. 📦 **Version**: **1.7.8 and earlier**. 🏢 **Vendor**: themegusta. If you use this addon, you are at risk.

Q4What can hackers do? (Privileges/Data)

💀 **Capabilities**: Full Remote Code Execution (RCE). 📂 **Impact**: High Confidentiality, Integrity, and Availability impact.…

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Threshold**: **LOW**. 🌐 **Access**: Network (AV:N), Low Complexity (AC:L), No Privileges Required (PR:N), No User Interaction (UI:N). You don't need to be logged in to exploit this. It's wide open.

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

📢 **Public Exploit**: No specific PoC code provided in the data. 🕵️ **Status**: However, the vulnerability is well-documented by Patchstack. Expect wild exploitation soon given the low barrier to entry.…

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for the plugin name: **Smart Sections Theme Builder**. 📋 **Verify**: Check if the installed version is **≤ 1.7.8**.…

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Fix**: Update the plugin to the latest version immediately. 🔄 **Action**: The vendor (themegusta) has released patches. Check the official WordPress repository or Patchstack for the fixed version > 1.7.8.

Q9What if no patch? (Workaround)

🚧 **No Patch?**: Disable the plugin instantly if updates aren't available. 🛑 **Mitigation**: Restrict access to the plugin files via .htaccess or WAF rules blocking PHP deserialization inputs. Isolate the site.

Q10Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **CRITICAL**. 🚨 **Priority**: Patch NOW. With CVSS High and no auth required, this is a prime target for automated bots. Delaying puts your entire WordPress infrastructure at severe risk.