{
    "id": "CVE-2020-35951",
    "published": "2021-01-01 04:15:13",
    "last_modified": "2026-06-17 03:14:40",
    "cvss_score": "9.9",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
    "cwe": "CWE-306",
    "description": "An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).",
    "epss_score": "0.76328",
    "epss_percentile": "0.99523",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-09-30 18:17:25",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 76.3% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "expresstech",
            "product": "quiz_and_survey_master"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://wpscan.com/vulnerability/10348",
        "https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/",
        "https://wpscan.com/vulnerability/10348",
        "https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/"
    ]
}