HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution_CVE-2026-44666

{
    "lastseen": "",
    "description": "HRConvert2 is a self-hosted, drag-and-drop & nosql file conversion server & share tool. Prior to 3.3.8, the sanitizeString() function in convertCore.php is missing backtick (`) and tab (\\t) from its strip list. User input then reaches shell_exec(), where the shell interprets these characters and commands within filenames execute. This vulnerability is fixed in 3.3.8.",
    "published": "2026-05-14T20:32:43.490Z",
    "modified": "2026-05-14T20:32:43.490Z",
    "type": "cve",
    "title": "HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution",
    "source": "GitHub_M",
    "references": "https://github.com/zelon88/HRConvert2/security/advisories/GHSA-f74g-4wj8-j35h\nhttps://github.com/zelon88/HRConvert2/releases/tag/v3.3.8",
    "id": "CVE-2026-44666",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "zelon88 HRConvert2 < 3.3.8",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L",
        "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": "HRConvert2",
    "version": "< 3.3.8",
    "vendor": "zelon88",
    "ai_description": "Unauthenticated Remote Command Execution due to missing input sanitization",
    "ai_severity": "Critical",
    "ai_vendor": "zelon88",
    "ai_product": "HRConvert2",
    "ai_version": "< 3.3.8",
    "ai_score": 9.3
}