Fabric.js: Improper escaping in fabric.Gradient colorStops leads to XSS in SVG serialization_CVE-2026-44311

{
    "lastseen": "",
    "description": "Fabric.js is a Javascript HTML5 canvas library. Prior to 7.4.0, a potential Cross-Site Scripting (XSS) vulnerability exists in Fabric.js due to improper escaping of user-controlled input during SVG serialization via the toSVG() method. Specifically, the color field within the colorStops array of a fabric.Gradient object is not properly escaped when converted into SVG <stop> elements. If an application renders the generated SVG string into the DOM, this may allow an attacker to inject arbitrary HTML/SVG and execute JavaScript in the victim's browser. This vulnerability is fixed in 7.4.0.",
    "published": "2026-06-22T20:50:56.690Z",
    "modified": "2026-06-22T20:50:56.690Z",
    "type": "cve",
    "title": "Fabric.js: Improper escaping in fabric.Gradient colorStops leads to XSS in SVG serialization",
    "source": "GitHub_M",
    "references": "https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx\nhttps://github.com/fabricjs/fabric.js/releases/tag/v740",
    "id": "CVE-2026-44311",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79",
        "CWE-116"
    ],
    "cvelist": null,
    "sourceData": "fabricjs fabric.js < 7.4.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "vectorString": "",
            "baseScore": 0,
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "fabric.js",
    "version": "< 7.4.0",
    "vendor": "fabricjs",
    "ai_description": "",
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    "ai_score": 0
}