Mermaid improperly sanitizes of sequence diagram labels leading to XSS_CVE-2025-54881

{
    "lastseen": "",
    "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 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.",
    "published": "2025-08-19T17:04:29.453Z",
    "modified": "2025-08-19T17:04:29.453Z",
    "type": "cve",
    "title": "Mermaid improperly sanitizes of sequence diagram labels leading to XSS",
    "source": "GitHub_M",
    "references": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-7rqq-prvp-x9jh\nhttps://github.com/mermaid-js/mermaid/commit/5c69e5fdb004a6d0a2abe97e23d26e223a059832\nhttps://github.com/mermaid-js/mermaid/commit/685516a85ec1df64cefd4fd15f26533be87d458e",
    "id": "CVE-2025-54881",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "mermaid-js mermaid >= 10.9.0-rc.1, <= 11.9.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "mermaid",
    "version": ">= 10.9.0-rc.1, <= 11.9.0",
    "vendor": "mermaid-js",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}