6.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2025-13806

CVE-2025-13806: nutzam NutzBoot Transaction API EthModule.java improper authorization

A security vulnerability has been detected in nutzam NutzBoot up to 2.6.0-SNAPSHOT. This impacts an unknown function of the file nutzboot-demo/nutzboot-demo-simple/nutzboot-demo-simple-web3j/src/main/java/io/nutz/demo/simple/module/EthModule.java of the component Transaction API. The manipulation of the argument from/to/wei leads to improper authorization. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-13806

CVE-2025-13806:

6.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.nutz:nutzboot-parent	maven	<= 2.6.0-SNAPSHOT

Technical Details

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Miggo AI

Root Cause Analysis

The vulnerability exists in a demo module of NutzBoot for web3j integration. The EthModule.java file contains a method sendTransaction which is exposed as an HTTP endpoint. This endpoint is intended for demonstrating how to send Ethereum transactions. However, it lacks any form of authentication or authorization. The vulnerability report and the source code confirm that by making a simple GET request to /web3j/eth/sendTransaction/{from}/{to}?wei=<amount>, an attacker can cause the server to transfer funds from any of its managed wallets. The from parameter is used to look up a local account, and its stored password is then used to sign the transaction via web3jAdmin.personalSendTransaction. This allows any unauthenticated remote user to drain the wallets controlled by the application.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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