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CVE-2021-47737

5.4 · MEDIUM

CSZ CMS 1.2.7 contains an HTML injection vulnerability that allows authenticated users to insert malicious hyperlinks in message titles.

Published Dec 23, 2025CWE-79EPSS 0.28%

Overview

CVE-2021-47737 is a medium-severity vulnerability. It was published on December 23, 2025 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

CSZ CMS 1.2.7 contains an HTML injection vulnerability that allows authenticated users to insert malicious hyperlinks in message titles. Attackers can craft POST requests to the member messaging system with HTML-based links to potentially conduct phishing or social engineering attacks.

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

Refsourceforge.net/projects/cszcms/Refwww.cszcms.com/Refwww.exploit-db.com/exploits/48357Refwww.vulncheck.com/advisories/csz-cms-html-injection-vulnerability-via-member-dashboard

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47737?

CVE-2021-47737 is a medium-severity vulnerability. It was published on December 23, 2025 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2021-47737?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-47737?

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-2021-47737?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47737 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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