CVE-2025-54881

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 10.9.0-rc.1 to 11.9.0, user supplied input for sequence diagram labels is passed to innerHTML during calculation of element size, causing XSS.

CVSS

No CVSS.

References

Link	Resource
https://github.com/mermaid-js/mermaid/commit/5c69e5fdb004a6d0a2abe97e23d26e223a059832
https://github.com/mermaid-js/mermaid/commit/685516a85ec1df64cefd4fd15f26533be87d458e
https://github.com/mermaid-js/mermaid/security/advisories/GHSA-7rqq-prvp-x9jh

Configurations

No configuration.

History

20 Aug 2025, 14:40

Type	Values Removed	Values Added
Summary		(es) Mermaid es una herramienta de diagramación y gráficos basada en JavaScript que utiliza definiciones de texto inspiradas en Markdown y un renderizador para crear y modificar diagramas complejos. En la configuración predeterminada de Mermaid 10.9.0-rc.1 a 11.9.0, la información proporcionada por el usuario para las etiquetas de los diagramas de secuencia se pasa a innerHTML durante el cálculo del tamaño del elemento, lo que provoca un error XSS.

19 Aug 2025, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-19 17:15

Updated : 2025-08-20 14:40

NVD link : CVE-2025-54881

Mitre link : CVE-2025-54881

CVE.ORG link : CVE-2025-54881

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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