---
id: CVE-2023-54400
title: >-
  Fumasoft Fumeng Cloud contains a SQL injection vulnerability in the
  AjaxMethod.ashx endpoint that allows unauthenticated remote attackers to
  inject arbitrary SQL through the Name parameter of the getEmpByname action
  without any authentic…
summary: >-
  Fumasoft Fumeng Cloud contains a SQL injection vulnerability in the
  AjaxMethod.ashx endpoint that allows unauthenticated remote attackers to
  inject arbitrary SQL through the Name parameter of the getEmpByname action
  without any authentic…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-89
vendor: Fumasoft
product: Fumeng Cloud
affected:
  - fumeng_cloud
published: '2026-09-29'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T17:32:07.107'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-54400'
references:
  - url: >-
      https://github.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.json
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/fumasoft-sqli.yaml
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/fumeng-cloud-sql-injection-via-ajaxmethod-ashx-getempbyname
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.json
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00587
epssPercentile: 0.47895
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-30T15:09:35.899582Z'
ingestedAt: '2026-09-29T16:39:33.261Z'
---

## Overview

Fumasoft Fumeng Cloud contains a SQL injection vulnerability in the AjaxMethod.ashx endpoint that allows unauthenticated remote attackers to inject arbitrary SQL through the Name parameter of the getEmpByname action without any authentication. Attackers can exploit UNION-based SQL injection techniques against the Microsoft SQL Server backend to extract, disclose, and modify database contents, with potential for further compromise of the underlying server. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.