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CVE-2023-54400

9.8 · CRITICAL

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 g…

Published Sep 29, 2026CWE-89EPSS 0.59%

Overview

CVE-2023-54400 is a critical-severity vulnerability. It was published on September 29, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.jsonGitHubgithub.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/fumasoft-sqli.yamlRefwww.vulncheck.com/advisories/fumeng-cloud-sql-injection-via-ajaxmethod-ashx-getempbynameGitHubgithub.com/emadshanab/goby-poc/blob/main/fumengyun%20%20AjaxMethod.ashx%20SQL%20injection.json

How CyberStrike helps

Frequently asked questions

What is CVE-2023-54400?

CVE-2023-54400 is a critical-severity vulnerability. It was published on September 29, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-54400?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-54400?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-54400?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-54400 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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