CVE-2023-54400: SQL Injection (CVSS 9.8)

Description

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.

Is your site exposed to CVE-2023-54400?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0046

Probability of exploitation

0.39%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-89 SQL Injection

References

Other References

https://github.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.json https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/fumasoft-sqli.yaml https://www.vulncheck.com/advisories/fumeng-cloud-sql-injection-via-ajaxmethod-ashx-getempbyname https://github.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.json

Frequently Asked Questions

What is CVE-2023-54400? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-54400? +

CVE-2023-54400 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2023-54400? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-15625

Unauthenticated user is able to execute arbitrary SQL commands in Sparx Pro Cloud Server database in certain cases.

CVE-2026-40482

ChurchCRM is an open-source church management system. Versions prior to 7.2.0 have SQL injection in FinancialService::getMemberByScanString() via unsanitized $routeAndAccount concatenated …

CVE-2025-41029

SQL injection vulnerability in Zeon Academy Pro by Zeon Global Tech. This vulnerability allows an attacker to retrieve, create, update, …

CVE-2026-25606

A SQL injection vulnerability has been identified in STER. Improper neutralization of input provided by user into multiple Search Filters …

CVE-2026-63314

WebCTI service for Slican IPx telephone exchanges is vulnerable to SQL Injection in /webcti/admin_json.php enpoint. Improper neutralization of input allows …

CVE-2026-40329

Masa CMS is an open source content management system. In versions 7.5.2 and earlier, a SQL injection vulnerability exists in …

CVE-2023-54400