WordPress Fusion Builder plugin

9.8 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Contributor PHP Object Injection in Fusion Builder <= 3.15.4 versions.

Basic Information

ID CVE-2026-54194

Source Patchstack

Published Jun 16, 2026 at 20:56

Affected Product

Vendor ThemeFusion

Product Fusion Builder

Version n/a

Affected Versions ThemeFusion Fusion Builder n/a

CWE Classification

CWE-502

References

patchstack.com /database/wordpress/plugin/fusion-builder/vulnerability/wordpress-fusion-builder-plugin-3-15-4-php-object-injection-vulnerability

{
    "lastseen": "",
    "description": "Contributor PHP Object Injection in Fusion Builder <= 3.15.4 versions.",
    "published": "2026-06-16T20:56:54.376Z",
    "modified": "2026-06-16T20:56:54.376Z",
    "type": "cve",
    "title": "WordPress Fusion Builder plugin <= 3.15.4 - PHP Object Injection vulnerability",
    "source": "Patchstack",
    "references": "https://patchstack.com/database/wordpress/plugin/fusion-builder/vulnerability/wordpress-fusion-builder-plugin-3-15-4-php-object-injection-vulnerability?_s_id=cve",
    "id": "CVE-2026-54194",
    "bulletinFamily": "",
    "cwe": [
        "CWE-502"
    ],
    "cvelist": null,
    "sourceData": "ThemeFusion Fusion Builder n/a",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/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": {
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Fusion Builder",
    "version": "n/a",
    "vendor": "ThemeFusion",
    "ai_description": "",
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    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}

WordPress Fusion Builder plugin <= 3.15.4 - PHP Object Injection vulnerability_CVE-2026-54194