CVE-2026-39554— WordPress Fidalgo theme <= 1.2.2 - PHP Object Injection vulnerability
Possible ATT&CK Techniques 2AI
T1190 · Exploit Public-Facing Application T1068 · Exploitation for Privilege EscalationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Elated-Themes | Fidalgo | n/a≤ 1.2.2 | affected |
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I. Basic Information for CVE-2026-39554
Vulnerability Information
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Vulnerability Title
WordPress Fidalgo theme <= 1.2.2 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated PHP Object Injection in Fidalgo <= 1.2.2 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/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
Elated-Themes Fidalgo 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elated-Themes Fidalgo是Elated-Themes组织的一个主题开发框架。 Elated-Themes Fidalgo 1.2.2及之前版本存在反序列化漏洞，该漏洞源于容易受到PHP对象注入攻击。
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 |
|---|---|---|---|---|
| Elated-Themes | Fidalgo | n/a ~ 1.2.2 | - |
II. Public POCs for CVE-2026-39554
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Vendor Advisories for CVE-2026-39554 (1)
Same Patch Batch · Elated-Themes · 2026-06-16 · 9 CVEs total
| CVE-2026-39522 | 8.1 HIGH | WordPress Solene theme <= 3.4 - Local File Inclusion vulnerability |
| CVE-2026-39577 | 8.1 HIGH | WordPress Playroom theme <= 1.4.1 - PHP Object Injection vulnerability |
| CVE-2026-39549 | 8.1 HIGH | WordPress Aperitif theme <= 1.5 - Local File Inclusion vulnerability |
| CVE-2026-39557 | 8.1 HIGH | WordPress NeoBeat theme <= 1.7 - PHP Object Injection vulnerability |
| CVE-2026-39578 | 8.1 HIGH | WordPress Valiance theme <= 1.2 - PHP Object Injection vulnerability |
| CVE-2026-39568 | 8.1 HIGH | WordPress Mr. SEO theme <= 2.0 - Local File Inclusion vulnerability |
| CVE-2026-40758 | 8.1 HIGH | WordPress Léonie theme <= 1.2.1 - PHP Object Injection vulnerability |
| CVE-2026-40754 | 8.1 HIGH | WordPress Roisin theme <= 1.4 - PHP Object Injection vulnerability |
IV. Related Vulnerabilities
Same vendor: Elated-Themes
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WordPress Vino theme <= 1.9 - Local File Inclusion vulnerabi - CVE-2026-57793
WordPress Flow theme <= 1.8 - Local File Inclusion vulnerabi - CVE-2026-42382
WordPress Audrey theme <= 1.5 - Local File Inclusion vulnera - CVE-2026-39576
WordPress SingleMalt theme <= 1.5 - PHP Object Injection vul - CVE-2026-39556
WordPress Konsept theme <= 1.9 - PHP Object Injection vulner
Same weakness: CWE-502
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V. Comments for CVE-2026-39554
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