{
    "id": "CVE-2026-41940",
    "published": "2026-04-29 16:16:25",
    "last_modified": "2026-06-17 10:47:13",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-306",
    "description": "cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.",
    "epss_score": "0.98527",
    "epss_percentile": "0.99920",
    "kev": 1,
    "kev_due": "2026-05-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:42:08",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-05-03."
    },
    "products": [
        {
            "vendor": "cpanel",
            "product": "cpanel"
        },
        {
            "vendor": "cpanel",
            "product": "whm"
        },
        {
            "vendor": "cpanel",
            "product": "wp_squared"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2026-41940",
        "date_added": "2026-04-30",
        "due_date": "2026-05-03",
        "vendor": "WebPros",
        "product": "cPanel & WHM and WP2 (WordPress Squared)",
        "name": "WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "52574",
            "title": "cPanel - CRLF Injection",
            "date": "2026-05-26",
            "url": "https://www.exploit-db.com/exploits/52574"
        }
    ],
    "refs_list": [
        "https://docs.cpanel.net/release-notes/release-notes",
        "https://docs.wpsquared.com/changelogs/versions/changelog/#13617",
        "https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026",
        "https://www.namecheap.com/status-updates/ongoing-critical-security-vulnerability-in-cpanel-april-28-2026",
        "https://www.vulncheck.com/advisories/cpanel-and-whm-authentication-bypass-via-login-flow",
        "https://labs.watchtowr.com/the-internet-is-falling-down-falling-down-falling-down-cpanel-whm-authentication-bypass-cve-2026-41940/",
        "https://www.bleepingcomputer.com/news/security/critrical-cpanel-flaw-mass-exploited-in-sorry-ransomware-attacks/",
        "https://github.com/watchtowrlabs/watchTowr-vs-cPanel-WHM-AuthBypass-to-RCE.py",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41940"
    ]
}