CVE-2024-25100 in Coupon Referral Program Plugin
Summary
by MITRE • 02/12/2024
Deserialization of Untrusted Data vulnerability in WP Swings Coupon Referral Program.This issue affects Coupon Referral Program: from n/a through 1.7.2.
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Analysis
by VulDB Data Team • 09/08/2025
The CVE-2024-25100 vulnerability represents a critical deserialization of untrusted data flaw within the WP Swings Coupon Referral Program plugin for WordPress systems. This vulnerability exists in versions ranging from the initial release through 1.7.2, creating a significant security risk for WordPress installations that utilize this particular coupon referral functionality. The flaw stems from the plugin's improper handling of serialized data structures that originate from user-controllable inputs or external sources, allowing malicious actors to inject crafted serialized objects that can be executed during the deserialization process.
The technical implementation of this vulnerability occurs when the plugin processes user-supplied data without adequate validation or sanitization before attempting to deserialize it. This typically happens in scenarios where the plugin accepts serialized data through HTTP parameters, API endpoints, or file uploads that are subsequently processed by PHP's unserialize() function or similar deserialization mechanisms. The lack of proper input validation creates an opportunity for attackers to construct malicious serialized objects that, when processed, can execute arbitrary code on the target system. This type of vulnerability is categorized under CWE-502, which specifically addresses deserialization of untrusted data as a security weakness that can lead to remote code execution or other serious consequences.
The operational impact of this vulnerability extends beyond simple data compromise, as it provides attackers with potential pathways to achieve full system control over affected WordPress installations. An attacker who successfully exploits this vulnerability could execute arbitrary commands on the web server, potentially leading to complete system compromise, data exfiltration, or the establishment of persistent backdoors. The vulnerability affects any WordPress site running the vulnerable plugin version, making it particularly dangerous as it can be exploited by automated scanning tools that target known vulnerable plugins. The attack surface is further expanded by the fact that many WordPress installations may not regularly update their plugins, leaving systems exposed to this type of exploitation for extended periods.
Mitigation strategies for CVE-2024-25100 should prioritize immediate action through plugin version updates provided by the vendor, as this represents the most direct solution to address the vulnerability. Organizations should implement comprehensive patch management procedures to ensure timely updates of all WordPress plugins and themes. Additional defensive measures include implementing web application firewalls that can detect and block suspicious deserialization patterns, restricting file upload capabilities, and employing input validation mechanisms that prevent malicious serialized data from entering the system. Security monitoring should include detection of unusual deserialization activities and implementation of principle of least privilege for web server processes to limit potential damage from successful exploitation attempts. The vulnerability aligns with ATT&CK technique T1203, which covers exploitation of remote services, and T1059, covering command and scripting interpreter, as successful exploitation would likely involve executing malicious code through the deserialization mechanism.