Welcome Software Publishing <= 0.0.31 - Authenticated (Subscriber+) Arbitrary Options Update to Privilege Escalation via 'nc.setOption' XML-RPC Method_CVE-2026-4297

{
    "lastseen": "",
    "description": "The Welcome Software Publishing plugin for WordPress is vulnerable to Arbitrary Options Update in all versions up to and including 0.0.31. This is due to a missing capability check in the nc_setOption() function, which is exposed via the nc.setOption XML-RPC method. The function authenticates the user via $wp_xmlrpc_server->login() (verifying credentials are valid) but does not perform any authorization check such as current_user_can('manage_options'). This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary WordPress options via XML-RPC requests. This can be leveraged to change the default_role option to 'administrator' and then register a new administrator account, achieving full privilege escalation and site takeover.",
    "published": "2026-06-24T05:33:24.530Z",
    "modified": "2026-06-24T05:33:24.530Z",
    "type": "cve",
    "title": "Welcome Software Publishing <= 0.0.31 - Authenticated (Subscriber+) Arbitrary Options Update to Privilege Escalation via 'nc.setOption' XML-RPC Method",
    "source": "Wordfence",
    "references": "https://www.wordfence.com/threat-intel/vulnerabilities/id/47e53fd3-4e3f-433a-8e70-3a58c864184a?source=cve\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L272\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L272\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L264\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L264\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L265\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L265\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L44\nhttps://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L44",
    "id": "CVE-2026-4297",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "newscred Welcome Software Publishing 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "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": "Welcome Software Publishing",
    "version": "0.0.31",
    "vendor": "newscred",
    "ai_description": "Arbitrary Options Update vulnerability in Welcome Software Publishing plugin for WordPress, allowing authenticated attackers to update arbitrary WordPress options via XML-RPC requests, potentially leading to privilege escalation and site takeover.",
    "ai_severity": "High",
    "ai_vendor": "Welcome Software",
    "ai_product": "Welcome Software Publishing plugin for WordPress",
    "ai_version": "0.0.31",
    "ai_score": 8.8
}