CVE-2025-54880 - CVE House
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Status published Medium CVE-2025-54880

Mermaid does not properly sanitize architecture diagram iconText leading to XSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

mermaid
Vulnerable Versions:
>= 11.1.0, < 11.10.0

Timeline

Official Publish: August 19th, 2025
Last Modified: August 19th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)