Is this vulnerability remotely exploitable beyond the local network?

Yes, if the xiaoheiFS instance exposes the `AdminPaymentPluginUpload` endpoint over the internet or a reachable network segment and the hardcoded password is accepted, an attacker can exploit it remotely.

What level of access does an attacker need to exploit this issue?

An attacker only needs network access to the service and knowledge of the static admin password. No valid user account or prior foothold on the host is strictly required if the endpoint is reachable.

What is the safest general fix pattern for this kind of vulnerability?

Replace hardcoded credentials with configurable, per-deployment secrets; enforce strict validation and isolation of uploaded content; and remove or heavily constrain any automated execution of files from writable directories used for uploads.

Severity:

HIGH RISK

(7.2)

Unrestricted File Upload & Hardcoded Credential (CWE-434, CWE-798) in xiaoheiFS Payment Plugin System

CVE-2026-28674

Published:

Mar 17, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-918

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

Unauthorized Access to Internal Resources via SSRF

May 6, 2026

CWE-863

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Unrestricted File Upload / Insecure Authentication

CWE:

CWE-434;CWE-798

Impact:

Remote Code Execution via Malicious Plugin Upload

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Vulnerability Type

Category:

Unrestricted File Upload / Insecure Authentication

CWE:

CWE-434;CWE-798

Impact:

Remote Code Execution via Malicious Plugin Upload

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

CodeAnt AI is an offensive and defensive security platform.

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

SOC 2 Type II certified | CodeAnt AI is independently audited and compliant with SOC 2 Type II security standards

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Unrestricted File Upload & Hardcoded Credential (CWE-434, CWE-798) in xiaoheiFS Payment Plugin System

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal