OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF_CVE-2026-4048

{
    "lastseen": "",
    "description": "OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated attacker with \u201cAll\u201d permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in a custom WAF rule file during the file upload process.",
    "published": "2026-04-20T13:36:49.475Z",
    "modified": "2026-04-20T14:06:18.689Z",
    "type": "cve",
    "title": "OS Command Injection Remote Code Execution Vulnerability in Progress LoadMaster, ECS Connection Manager, Object Scale Connection Manager & MOVEit WAF",
    "source": "ProgressSoftware",
    "references": "https://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876",
    "id": "CVE-2026-4048",
    "bulletinFamily": "",
    "cwe": [
        "CWE-77"
    ],
    "cvelist": null,
    "sourceData": "Progress Software LoadMaster V7.1.20.0\nProgress Software ECS Connections Manager V7.2.49.0\nProgress Software Object Scale Connection Manager V7.2.62.0\nProgress Software MOVEit WAF V7.2.62.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.4,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "LoadMaster",
    "version": "V7.1.20.0",
    "vendor": "Progress Software",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}