Meta Field Block <= 1.5.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'tagName' Block Attribute_CVE-2026-6252

{
    "lastseen": "",
    "description": "The Meta Field Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tagName' block attribute in all versions up to, and including, 1.5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
    "published": "2026-05-14T06:44:13.636Z",
    "modified": "2026-05-14T06:44:13.636Z",
    "type": "cve",
    "title": "Meta Field Block <= 1.5.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'tagName' Block Attribute",
    "source": "Wordfence",
    "references": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e6a70210-39bb-44a2-b71a-6f014691a21c?source=cve\nhttps://plugins.trac.wordpress.org/changeset/3517519/display-a-meta-field-as-block/tags/1.5.3/includes/helper-functions.php",
    "id": "CVE-2026-6252",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "mr2p Meta Field Block \u2013 Display custom fields in the Block Editor without coding 0",
    "sourceHref": "",
    "cvss": {
        "score": 6.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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": "Meta Field Block \u2013 Display custom fields in the Block Editor without coding",
    "version": "0",
    "vendor": "mr2p",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}