CVE-2026-39397 — AI Deep Analysis Summary

🚨 **Vulnerability Essence**: The CRUD interfaces in payload-puck < 0.6.23 lack **collection-level access control**. 💥 **Consequence**: Any user can bypass permissions to read and write sensitive data.

🔍 **Root Cause**: Missing access control logic ➜ User permissions are not verified. 📌 Corresponding **CWE**: Missing Authorization (e.g., CWE-862).

🎯 **Affected Versions**: payload-puck **< 0.6.23**. 🧩 **Component**: A **visual page building plugin** open-sourced by Delmare Digital.

👤 **Attacker Capability**: No login required ➜ Directly access/modify data in any collection. 📂 **Affected Data**: All business data managed by the plugin 🚨.

🟢 **Low Exploitation Barrier**: - ✅ **No authentication required** (PR:N) - ✅ **Vulnerable by default configuration**

❌ **No Public Exploit**: - PoC list is empty 📭 - No known in-the-wild exploitation 🕵️

🔎 **Self-Check Method**: - Check if version < 0.6.23 ⚠️ - Verify if CRUD interfaces lack permission checks 🛠️ - Capture packets to verify unauthorized access to collection data

✅ **Officially Fixed**: - Commit `9148201` submitted 🛡️ - Update to version ≥ 0.6.23 to resolve

⚠️ **Pre-Patch Mitigation**: - Restrict source IPs for CRUD interfaces 🚧 - Add an authentication layer via reverse proxy 🔐 - Disable unnecessary collection exposure

🔥 **Priority: High**! - CVSS 8.2 🚨 - Easy to exploit + High impact ➜ Upgrade or apply protection immediately 💡