Concrete CMS 9.5.0 and below is vulnerable to CSRF via the DeleteFile controller_CVE-2026-7882

{
    "lastseen": "",
    "description": "Concrete CMS  9.5.0 and below is vulnerable to unauthorized file deletion due to an Inverted CSRF token check in the DeleteFile controller.\u00a0The code throws an error when the token IS valid and proceeds with file deletion when the token is invalid or missing. This effectively disables CSRF protection for the file deletion endpoint, allowing cross-site request forgery attacks against users who have permission to edit conversation messages.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of\u00a02.3 with a vector of\u00a0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Tristan Mandani for reporting.",
    "published": "2026-05-21T21:17:22.069Z",
    "modified": "2026-05-21T21:17:22.069Z",
    "type": "cve",
    "title": "Concrete CMS 9.5.0 and below is vulnerable to CSRF via the DeleteFile controller",
    "source": "ConcreteCMS",
    "references": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes",
    "id": "CVE-2026-7882",
    "bulletinFamily": "",
    "cwe": [
        "CWE-352"
    ],
    "cvelist": null,
    "sourceData": "Concrete CMS Concrete CMS 5.0",
    "sourceHref": "",
    "cvss": {
        "score": 2.3,
        "severity": "LOW",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
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    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Concrete CMS",
    "version": "5.0",
    "vendor": "Concrete CMS",
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    "ai_score": 0
}