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CVE-2025-54880

6.1 · MEDIUM

Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams.

Published Aug 19, 2025CWE-79EPSS 0.41%

Overview

CVE-2025-54880 is a medium-severity vulnerability. It was published on August 19, 2025 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. In the default configuration of mermaid 11.9.0 and earlier, user supplied input for architecture diagram icons is passed to the d3 html() method, creating a sink for cross site scripting. This vulnerability is fixed in 11.10.0.

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/mermaid-js/mermaid/commit/2aa83302795183ea5c65caec3da1edd6cb4791fcGitHubgithub.com/mermaid-js/mermaid/commit/734bde38777c9190a5a72e96421c83424442d4e4GitHubgithub.com/mermaid-js/mermaid/security/advisories/GHSA-8gwm-58g9-j8pwGitHubgithub.com/mermaid-js/mermaid/security/advisories/GHSA-8gwm-58g9-j8pw

How CyberStrike helps

Frequently asked questions

What is CVE-2025-54880?

CVE-2025-54880 is a medium-severity vulnerability. It was published on August 19, 2025 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-54880?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-54880?

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-2025-54880?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-54880 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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