CVE-2025-34100 — AI Deep Analysis Summary

🚨 **Essence**: BuilderEngine CMS (v3.5.0) suffers from **Arbitrary File Upload** via elFinder 2.0.…

🛡️ **Root Cause**: **CWE-434** (Unrestricted Upload of File with Dangerous Type). The flaw lies in the **elFinder 2.0** file manager component, which fails to properly validate uploaded file types or content.

🏢 **Affected**: **BuilderEngine** CMS. Specifically, version **3.5.0** and potentially earlier versions using the vulnerable elFinder 2.0 integration. Vendor: **BuilderEngine**.

🔓 **Attacker Capabilities**: Gain **Remote Code Execution (RCE)**.…

⚠️ **Threshold**: **Low**. The vulnerability is linked to **unauthenticated** arbitrary file upload (per VulnCheck advisory). No authentication or complex configuration is likely required to trigger the upload.

🔥 **Public Exploits**: **Yes**. Active exploits exist on **Exploit-DB** (ID 40390) and **Metasploit** (`builderengine_upload_exec.rb`). A demo PoC is also available on GitHub, indicating high risk of wild exploitation.

🔍 **Self-Check**: Scan for **BuilderEngine** CMS instances. Check for the presence of **elFinder 2.0** components. Look for upload endpoints that accept executable extensions (e.g., .php, .jsp) without strict validation.

🩹 **Fix Status**: The vulnerability is published (July 2025). While no specific patch link is provided in the data, vendors typically release updates for such critical RCE flaws.…

🛑 **Workaround**: If no patch is available, **disable the elFinder file manager** or restrict access to file upload functionalities.…

🚨 **Urgency**: **CRITICAL**. Due to **unauthenticated RCE** potential and **publicly available exploits**, immediate action is required. Prioritize patching or applying mitigations to prevent immediate compromise.