{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-43861",
        "STATE": "PUBLIC",
        "TITLE": "Incorrect sanitisation function leads to `XSS`"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "mermaid",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 8.13.8"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "mermaid-js"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. Prior to version 8.13.8, malicious diagrams can run javascript code at diagram readers' machines. Users should upgrade to version 8.13.8 to receive a patch. There are no known workarounds aside from upgrading."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20: Improper Input Validation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v",
                "refsource": "CONFIRM",
                "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v"
            },
            {
                "name": "https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83",
                "refsource": "MISC",
                "url": "https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83"
            },
            {
                "name": "https://github.com/mermaid-js/mermaid/releases/tag/8.13.8",
                "refsource": "MISC",
                "url": "https://github.com/mermaid-js/mermaid/releases/tag/8.13.8"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-p3rp-vmj9-gv6v",
        "discovery": "UNKNOWN"
    }
}