EUVD-2026-39710
GHSA-gg9m-2j95-f3p4
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V1 - Encoding and Sanitization Safe deserialization, type allowlists
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jun 26, 2026
Authenticated PHP object injection in the RealHomes WordPress theme (versions 4.5.3 and earlier) lets a low-privileged Subscriber-level account inject crafted serialized objects into an unsafe deserialization sink (CWE-502). Because WordPress applications and plugins commonly contain POP gadget chains, this can escalate to arbitrary file operations, SQL injection, or remote code execution, which is reflected in the high CVSS 8.8 (C:H/I:H/A:H). Reported by Patchstack; no public exploit identified at time of analysis and it is not listed in CISA KEV.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (patchstack) · only source for this CVE.
CVSS VectorVendor: patchstack
DescriptionCVE.org
Subscriber PHP Object Injection in RealHomes <= 4.5.3 versions.
Articles & Coverage 1
Executive ViewAI
The RealHomes WordPress theme (versions 4.5.3 and earlier) exposes a critical vulnerability that converts compromised subscriber accounts into remote code execution pathways, threatening confidentiality, integrity, and availability of hosted websites. The CVSS 8.8 rating reflects potential for database compromise and arbitrary file manipulation. Organizations must immediately restrict subscriber access and disable registrations while awaiting vendor remediation.
Within 24 hours: Audit all subscriber accounts; immediately disable user registration on affected instances and disable non-essential subscriber accounts. Within 7 days: Monitor RealHomes vendor and Patchstack advisory channels for patch release; deploy WAF policies targeting CWE-502 deserialization attacks; implement strict role-based access controls limiting subscriber capabilities. Within 30 days: Apply vendor patch to all affected RealHomes installations upon release; review access logs for exploitation attempts; conduct security assessment of subscriber account activity.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) Disable user registration to prevent new subscriber account creation; (2) remove or suspend non-essential subscriber accounts; (3) deploy web application firewall with CWE-502 (unsafe deserialization) detection rules; (4) implement detailed logging and monitoring of HTTP POST requests containing serialized PHP objects; (5) enforce principle of least privilege for subscriber role-restrict to read-only access where operationally feasible; (6) prepare staging environment for immediate patch testing upon vendor release.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.
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