Quiz and Survey Master (QSM) <= 10.3.1 - Authenticated (Subscriber+) SQL Injection via `is_linking` Query Parameter_CVE-2025-9318

{
    "lastseen": "",
    "description": "The Quiz and Survey Master (QSM) \u2013 Easy Quiz and Survey Maker plugin for WordPress is vulnerable to time-based SQL Injection via the \u2018is_linking\u2019 parameter in all versions up to, and including, 10.3.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query.  This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.",
    "published": "2026-01-06T09:20:59.146Z",
    "modified": "2026-01-06T09:20:59.146Z",
    "type": "cve",
    "title": "Quiz and Survey Master (QSM) <= 10.3.1 - Authenticated (Subscriber+) SQL Injection via `is_linking` Query Parameter",
    "source": "Wordfence",
    "references": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e6524e66-5bd1-4616-8185-c0501a09893e?source=cve\nhttps://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/rest-api.php#L533",
    "id": "CVE-2025-9318",
    "bulletinFamily": "",
    "cwe": [
        "CWE-89"
    ],
    "cvelist": null,
    "sourceData": "expresstech Quiz and Survey Master (QSM) \u2013 Easy Quiz and Survey Maker *",
    "sourceHref": "",
    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
        "version": "3.1"
    },
    "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": "Quiz and Survey Master (QSM) \u2013 Easy Quiz and Survey Maker",
    "version": "*",
    "vendor": "expresstech",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}