CVE-2026-112847 in ZenSoul Plugin
Summary
by MITRE • 10/23/2026
Deserialization of Untrusted Data vulnerability in ThemeREX ZenSoul zensoul allows Object Injection.This issue affects ZenSoul: from n/a through 1.13.
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Analysis
by VulDB Data Team • 10/23/2026
The identified security flaw represents a critical deserialization of untrusted data vulnerability within the ThemeREX ZenSoul WordPress theme, specifically affecting versions ranging from initial releases up to version 1.13. This category of vulnerability is fundamentally rooted in the application's failure to properly validate or sanitize input before passing it through a serialization mechanism that reconstructs objects in memory. In this context, an attacker can supply maliciously crafted serialized data which, when processed by the theme, results in object injection. Unlike simple cross-site scripting where arbitrary code execution is limited to the browser environment, object injection allows for much broader and more severe consequences because it interacts directly with the server-side application logic and available classes.
From a technical perspective, this flaw aligns closely with Common Weakness Enumeration identifier CWE-502, which describes deserialization of untrusted data. The vulnerability likely exists in one or more functions within the ZenSoul theme that accept user-supplied input for processing without adequate checks on the type and structure of the incoming serialized payload. When PHP processes this unvalidated data using functions such as unserialize(), it instantiates objects based on the class names embedded in the serialized string. If the application has access to other classes with dangerous methods, or if certain built-in magic methods like __wakeup() are present and vulnerable, an attacker can manipulate these object states to trigger unintended side effects. This process bypasses standard input validation layers because the data appears as a legitimate serialization stream rather than raw malicious code until it is deserialized.
The operational impact of this vulnerability is severe due to its potential for remote code execution. By leveraging object injection, an attacker may be able to invoke arbitrary methods on instantiated objects, potentially leading to full system compromise if dangerous classes such as those handling file operations or database queries are accessible within the application's scope. This aligns with several tactics in the MITRE ATT&CK framework, particularly T1059 Command and Scripting Interpreter for executing commands via injected code, and T1203 Exploitation for Client Execution if the attack vector involves client-side triggers that lead to server-side exploitation through session manipulation or file uploads. The ability to inject objects effectively grants an attacker a foothold within the application's runtime environment, allowing them to escalate privileges, exfiltrate sensitive data stored in object properties, or pivot further into the internal network depending on the hosting configuration and available resources.
Mitigation strategies must focus on immediate remediation of the affected software components alongside broader security hygiene practices. The primary recommendation is to upgrade ThemeREX ZenSoul to a version later than 1.13 where this vulnerability has been patched by the developers through stricter input validation and safe deserialization patterns. If upgrading is not immediately feasible, administrators should consider disabling any functionality within the theme that processes serialized user data until an update can be applied. Additionally, implementing strict allowlists for class names during deserialization operations can prevent attackers from instantiating arbitrary classes. It is also advisable to disable dangerous PHP functions and magic methods in environments where they are not strictly necessary, thereby reducing the attack surface available to object injection attempts. Regular security audits and code reviews focusing on data handling routines will help identify similar weaknesses before they can be exploited by malicious actors seeking to compromise WordPress-based websites running this theme.