CVE-2025-53583 in Employee Spotlight Plugin
Summary
by MITRE • 08/28/2025
Deserialization of Untrusted Data vulnerability in emarket-design Employee Spotlight allows Object Injection. This issue affects Employee Spotlight: from n/a through 5.1.1.
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Analysis
by VulDB Data Team • 08/28/2025
The vulnerability identified as CVE-2025-53583 represents a critical deserialization flaw in the emarket-design Employee Spotlight component that enables object injection attacks. This weakness occurs when the application processes untrusted data through deserialization mechanisms without proper validation or sanitization, creating a pathway for malicious actors to inject arbitrary objects into the application's memory space. The vulnerability specifically impacts versions of Employee Spotlight ranging from an unspecified initial version through 5.1.1, indicating a broad affected scope that likely encompasses multiple releases within this version range.
From a technical perspective, the flaw manifests as a failure to implement proper input validation during the deserialization process, which is classified under CWE-502 as "Deserialization of Untrusted Data." This vulnerability type allows attackers to craft malicious serialized objects that, when processed by the vulnerable application, can execute arbitrary code or manipulate application behavior. The object injection aspect suggests that attackers can inject specially crafted objects that the application's deserialization routines will attempt to reconstruct, potentially leading to remote code execution or privilege escalation depending on the application's execution context and permissions.
The operational impact of this vulnerability extends beyond simple data corruption or application instability, as it creates a potential entry point for attackers to gain unauthorized access to systems. In the context of employee spotlight applications, which typically handle sensitive personnel information, this vulnerability could enable attackers to access confidential employee data, manipulate user permissions, or even establish persistent backdoors within the organization's infrastructure. The attack surface is particularly concerning given that deserialization vulnerabilities often allow for complex attack chains that can bypass traditional security controls and exploit multiple system components simultaneously.
Security practitioners should consider this vulnerability in relation to the ATT&CK framework, specifically under techniques such as T1210 - Exploitation of Remote Services and T1059 - Command and Scripting Interpreter, as the deserialization flaw can enable command execution and remote access capabilities. Mitigation strategies should include implementing strict input validation for all deserialization operations, employing secure deserialization libraries that prevent execution of malicious code during object reconstruction, and applying principle of least privilege configurations to limit the damage potential of successful exploitation attempts. Additionally, organizations should conduct thorough code reviews focusing on deserialization patterns and consider implementing application whitelisting or sandboxing mechanisms to contain potential exploitation attempts.