{
    "id": "CVE-2026-58480",
    "published": "2026-07-08 14:17:19",
    "last_modified": "2026-07-08 15:28:15",
    "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-434",
    "description": "Blocksy Companion Pro plugin for WordPress before 2.1.47 contains an unauthenticated arbitrary file upload vulnerability that allows attackers to upload executable files by bypassing extension validation in the save_attachments function exposed through the Advanced Reviews feature. Attackers can exploit the Custom Fonts extension's flawed strpos() substring check by uploading double-extension filenames such as shell.woff2.php, causing the validation to pass on the substring match while the web server executes the file as PHP, achieving remote code execution.",
    "epss_score": "0.03572",
    "epss_percentile": "0.88950",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:18:00",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "52640",
            "title": "Blocksy Companion  2.1.46 - RCE",
            "date": "2026-08-11",
            "url": "https://www.exploit-db.com/exploits/52640"
        }
    ],
    "refs_list": [
        "https://patchstack.com/database/wordpress/plugin/blocksy-companion/vulnerability/wordpress-blocksy-companion-plugin-2-1-46-unauthenticated-arbitrary-file-upload-vulnerability",
        "https://wordpress.org/plugins/blocksy-companion/",
        "https://www.vulncheck.com/advisories/blocksy-companion-pro-unauthenticated-file-upload-via-save-attachments",
        "https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/blocksy-companion/blocksy-companion-2146-unauthenticated-arbitrary-file-upload-via-blc-review-images-parameter"
    ]
}