8.8High

CVE-2026-12256WordPress Fusion Builder plugin <= 3.15.3 - PHP Object Injection vulnerability

ThemeFusion Fusion Builder Published: 2026-06-16 23:57 (5 months ago)

Description

Deserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.

Weakness (CWE): CWE-502

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
ThemeFusion	Fusion Builder	≤ 3.15.3

References and patches

https://patchstack.com/database/wordpress/plugin/fusion-builder/vulnerability/wordpress-avada-theme-3-15-3-ph… vdb-entry

CVSS score

8.8High

Source: Patchstack · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

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

All scores (2)

cna	CVSS 3.1	8.8High
audit@patchstack.com	CVSS 3.1	8.8High

EPSS (chance of exploitation in 30 days)

0.47%

higher than 41% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: total

Timeline

ID reserved2026-06-15
Published2026-06-16 23:57
Reached IP-DB2026-10-24 23:39
Last updated2026-10-26 15:10

Assigned by (CNA): Patchstack
NVD status: Deferred

View at source: CVE.org · NVD

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