CVE-2025-69002 in OneLife Plugin
Summary
by MITRE • 01/22/2026
Deserialization of Untrusted Data vulnerability in designthemes OneLife onelife allows Object Injection.This issue affects OneLife: from n/a through <= 3.9.
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Analysis
by VulDB Data Team • 01/28/2026
The CVE-2025-69002 vulnerability represents a critical deserialization flaw in the designthemes OneLife WordPress theme, specifically impacting versions through 3.9. This vulnerability falls under the CWE-502 category of Deserialization of Untrusted Data, which is a well-documented weakness in software security that has been consistently flagged as a high-risk vulnerability by security organizations worldwide. The issue manifests as an object injection attack vector that allows malicious actors to manipulate serialized data structures within the theme's codebase, potentially leading to arbitrary code execution or complete system compromise. The vulnerability's presence in the OneLife theme demonstrates how seemingly benign WordPress themes can contain dangerous serialization patterns that expose systems to sophisticated attack techniques.
The technical exploitation of this vulnerability occurs when the theme processes untrusted data through PHP's unserialize() function or similar deserialization mechanisms without proper input validation or sanitization. Attackers can craft malicious serialized objects that, when processed by the vulnerable theme, execute arbitrary code on the target server. This type of attack leverages the fundamental weakness in how PHP handles object serialization and deserialization, where the unserialize() function can trigger magic methods within PHP classes, potentially leading to remote code execution. The vulnerability is particularly dangerous because it operates at the core of how data is processed and interpreted within the WordPress theme framework, making it difficult to detect and prevent through traditional security measures.
The operational impact of this vulnerability extends beyond simple data compromise, as it can lead to complete system takeover and persistent backdoor installation. When exploited successfully, attackers can execute arbitrary commands on the compromised server, potentially gaining access to sensitive user data, modifying website content, or using the compromised system as a launching point for further attacks within the network. The vulnerability affects not only the specific WordPress installation but also any systems that rely on the compromised theme's functionality, creating cascading security risks for organizations using the affected theme. This type of vulnerability is particularly concerning in the context of WordPress themes, where the attack surface is often expanded through the use of third-party libraries and complex data processing mechanisms that may not be properly secured against malicious input.
Organizations should immediately implement comprehensive mitigation strategies including updating to the latest version of the OneLife theme where available, implementing proper input validation for all user-supplied data, and deploying web application firewalls to monitor and block suspicious deserialization attempts. Security teams should also conduct thorough code reviews to identify other potential deserialization vulnerabilities within their WordPress installations and related themes or plugins. The ATT&CK framework categorizes this type of vulnerability under T1210 - Exploitation of Remote Services, with specific techniques related to T1059.007 - Command and Scripting Interpreter: PowerShell and T1566.001 - Phishing: Spearphishing Attachment, as attackers often use serialized objects in phishing campaigns to establish initial access. Additionally, implementing proper security controls such as disabling unnecessary PHP functions, using Content Security Policies, and maintaining up-to-date security monitoring systems can significantly reduce the risk of exploitation. The vulnerability underscores the importance of following secure coding practices and adhering to OWASP Top Ten security guidelines, particularly those related to input validation and secure deserialization techniques that prevent attackers from manipulating serialized data structures to execute malicious code.