CVE-2026-12256— WordPress Avada theme <= 3.15.3 - PHP Object Injection vulnerability
Quick assessment
Affected
ThemeFusion Avada
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
themefusion Avada是themefusion的一款多用途网站主题构建工具。 ThemeFusion Avada 3.15.3及之前版本存在反序列化漏洞，该漏洞源于PHP对象注入，可能导致拥有贡献者权限的攻击者进行远程代码执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ThemeFusion | Avada | n/a≤ 3.15.3 |
affected |
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I. Basic Information for CVE-2026-12256
Vulnerability Information
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Vulnerability Title
WordPress Avada theme <= 3.15.3 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Contributor PHP Object Injection in Avada <= 3.15.3 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
ThemeFusion Avada 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
themefusion Avada是themefusion的一款多用途网站主题构建工具。 ThemeFusion Avada 3.15.3及之前版本存在反序列化漏洞，该漏洞源于PHP对象注入，可能导致拥有贡献者权限的攻击者进行远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ThemeFusion | Avada | n/a ~ 3.15.3 | - |
|
II. Public POCs for CVE-2026-12256
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-12256 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-12256
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