Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes_CVE-2026-33742

{
    "lastseen": "",
    "description": "Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Product notes fields in Invoice Ninja v5.13.0 allow raw HTML via Markdown rendering, enabling stored XSS. The Markdown parser output was not sanitized with `purify::clean()` before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding `purify::clean()` to sanitize Markdown output.",
    "published": "2026-03-26T20:50:21.984Z",
    "modified": "2026-03-27T13:55:25.963Z",
    "type": "cve",
    "title": "Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes",
    "source": "GitHub_M",
    "references": "https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh\nhttps://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4",
    "id": "CVE-2026-33742",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "invoiceninja invoiceninja < 5.13.4",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
        "version": "3.1"
    },
    "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": "invoiceninja",
    "version": "< 5.13.4",
    "vendor": "invoiceninja",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}