{
    "id": "CVE-2021-3111",
    "published": "2021-01-08 15:15:12",
    "last_modified": "2026-06-17 04:04:41",
    "cvss_score": "4.8",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
    "cwe": "CWE-79",
    "description": "The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new data object at an index.php/dashboard/express/entries/view/ URI.",
    "epss_score": "0.03045",
    "epss_percentile": "0.87096",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-05 18:17:27",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "concretecms",
            "product": "concrete_cms"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "49721",
            "title": "Concrete5 8.5.4 - 'name' Stored XSS",
            "date": "2021-03-29",
            "url": "https://www.exploit-db.com/exploits/49721"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html",
        "http://packetstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.html",
        "https://documentation.concrete5.org/developers/introduction/version-history",
        "https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes",
        "https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf",
        "http://packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html",
        "http://packetstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.html",
        "https://documentation.concrete5.org/developers/introduction/version-history",
        "https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes",
        "https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf"
    ]
}