Weak webstax_auth Cookie Authentication Allows Privilege Escalation_CVE-2026-2336

{
    "lastseen": "",
    "description": "A privilege escalation vulnerability in Microchip IStaX allows an authenticated low-privileged user to recover a shared per-device cookie secret from their own webstax_auth session cookie and forge a new cookie with administrative privileges.This issue affects IStaX before 2026.03.",
    "published": "2026-04-16T17:02:06.352Z",
    "modified": "2026-04-16T17:02:06.352Z",
    "type": "cve",
    "title": "Weak webstax_auth Cookie Authentication Allows Privilege Escalation",
    "source": "Microchip",
    "references": "https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/istax-privilege-escalation-via-weak-cookie-authentication",
    "id": "CVE-2026-2336",
    "bulletinFamily": "",
    "cwe": [
        "CWE-331"
    ],
    "cvelist": null,
    "sourceData": "Microchip IStaX 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H",
        "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": "IStaX",
    "version": "0",
    "vendor": "Microchip",
    "ai_description": "Privilege escalation vulnerability in Microchip IStaX via weak webstax_auth cookie authentication",
    "ai_severity": "High",
    "ai_vendor": "Microchip",
    "ai_product": "IStaX",
    "ai_version": "before 2026.03",
    "ai_score": 8.7
}