{
    "id": "CVE-2026-48558",
    "published": "2026-06-12 18:16:35",
    "last_modified": "2026-06-30 13:03:11",
    "cvss_score": "10.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-347",
    "description": "SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication. No user interaction is required.",
    "epss_score": "0.05719",
    "epss_percentile": "0.92767",
    "kev": 1,
    "kev_due": "2026-07-02",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:42:56",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-07-02."
    },
    "products": [
        {
            "vendor": "simple-help",
            "product": "simplehelp"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2026-48558",
        "date_added": "2026-06-29",
        "due_date": "2026-07-02",
        "vendor": "SimpleHelp ",
        "product": "SimpleHelp",
        "name": "SimpleHelp Authentication Bypass Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://horizon3.ai/attack-research/disclosures/cve-2026-48558-simplehelp-authentication-bypass-iocs/",
        "https://simple-help.com/release-news",
        "https://simple-help.com/security/simplehelp-security-update-2026-05",
        "https://blackpointcyber.com/blog/a-djinn-in-the-machine-taskweavers-node-js-intrusion-chain/",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48558"
    ]
}