Pagekit CMS 1.0.18 Privilege Escalation via UserApiController_CVE-2026-57518

{
    "lastseen": "",
    "description": "Pagekit CMS 1.0.18 contains a privilege escalation vulnerability that allows authenticated users with the 'user: manage users' permission to escalate privileges by assigning arbitrary custom roles to themselves due to missing authorization checks in UserApiController::saveAction(). Attackers can assign themselves a custom role with the 'system: manage packages' permission and then upload and install a malicious PHP package through the admin package installer to achieve remote code execution.",
    "published": "2026-06-26T15:58:20.847Z",
    "modified": "2026-06-26T15:58:20.847Z",
    "type": "cve",
    "title": "Pagekit CMS 1.0.18 Privilege Escalation via UserApiController",
    "source": "VulnCheck",
    "references": "https://gist.github.com/sermikr0/6f0a67e9d101746fcdb04827de137847\nhttps://www.vulncheck.com/advisories/pagekit-cms-privilege-escalation-via-userapicontroller",
    "id": "CVE-2026-57518",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "pagekit pagekit 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "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": "pagekit",
    "version": "1.0.18",
    "vendor": "pagekit",
    "ai_description": "Privilege escalation vulnerability in Pagekit CMS via UserApiController",
    "ai_severity": "High",
    "ai_vendor": "Pagekit",
    "ai_product": "Pagekit CMS",
    "ai_version": "1.0.18",
    "ai_score": 8.7
}