Kirby: User avatar creation, replacement and deletion are not gated by user update permissions_CVE-2026-42174

{
    "lastseen": "",
    "description": "Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, user avatar creation, replacement and deletion are not gated by user update permissions. This issue has been patched in versions 4.9.0 and 5.4.0.",
    "published": "2026-05-09T03:39:06.016Z",
    "modified": "2026-05-09T03:39:06.016Z",
    "type": "cve",
    "title": "Kirby: User avatar creation, replacement and deletion are not gated by user update permissions",
    "source": "GitHub_M",
    "references": "https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2\nhttps://github.com/getkirby/kirby/releases/tag/4.9.0\nhttps://github.com/getkirby/kirby/releases/tag/5.4.0",
    "id": "CVE-2026-42174",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "getkirby kirby < 4.9.0\ngetkirby kirby >= 5.0.0, < 5.4.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/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": "kirby",
    "version": "< 4.9.0",
    "vendor": "getkirby",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}