Bug 2389477 (CVE-2025-54880)

Summary: CVE-2025-54880 mermaid: Mermaid cross site scripting
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A Cross-site scripting (XSS) flaw was found in the Mermaid JavaScript diagramming and charting tool. In the default configuration of Mermaid, user-supplied input for architecture diagram icons is passed to the d3.html () method, creating a sink for Cross-site scripting.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2389817, 2389819, 2389823, 2389825, 2389827, 2389833, 2389835, 2389837, 2389845, 2389811, 2389813, 2389815, 2389821, 2389829, 2389831, 2389839, 2389841, 2389843    
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Description OSIDB Bzimport 2025-08-19 18:02:54 UTC
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.