The Spin Wheel plugin for WordPress is vulnerable to client-side prize manipulation in all versions up to, and including, 2.1.0. This vulnerability allows unauthenticated attackers to manipulate which prize they win by modifying the 'prize_index' parameter sent to the server. The plugin's design trusts client-supplied prize selection data without server-side validation or randomization, leading to potential exploitation where attackers can consistently select the most valuable prizes.
With a CVSS score of 5.3, this vulnerability is classified as medium severity. Organizations using this plugin must understand the implications of this vulnerability, as it poses a risk of undermining the integrity of prize distributions. The potential for exploitation exists due to low attack complexity and the lack of required privileges or user interaction.
Organizations should prioritize patching immediately. The potential for exploitation could lead to significant financial losses or reputational damage, especially for businesses relying on fair prize distributions to engage users.
Although this vulnerability has been identified, there are currently no known exploits or public proof-of-concept (PoC) available. However, organizations should remain vigilant and implement measures to mitigate the risk associated with this vulnerability.
Given the low EPSS score indicating a low probability of exploitation, the focus should still remain on remediation efforts and ensuring security best practices are followed.
Vulnerability Details
The vulnerability is classified under CWE-602, indicating the weakness in trusting client-side data. This lack of validation is a critical misstep in the plugin's security design, allowing attackers to exploit its functionalities.
The vulnerability was published on January 17, 2026, and has been marked as deferred, which indicates that no immediate action has been mandated by security advisories. However, the absence of active exploitation does not diminish the importance of addressing this vulnerability.
Technical Analysis
The root cause of this vulnerability lies in the plugin's design, which fails to implement server-side validation for prize selection. The trust placed in client-side data allows attackers to manipulate the 'prize_index' parameter without any checks, leading to potential financial gain at the expense of the system's integrity.
The attack vector for this vulnerability is network-based, meaning that an attacker can exploit it remotely without needing physical access to the target system. The attack complexity is rated as low, allowing even less sophisticated attackers to execute the exploitation.
No privileges are required to exploit this vulnerability, and user interaction is not necessary, which increases the likelihood of successful exploitation. The integrity impact of this vulnerability is rated as low, as it primarily affects the outcome of prize distributions rather than compromising sensitive data.
Risk & Impact Analysis
Risk to organizations includes potential financial losses and damage to reputation due to unfair prize distributions. The blast radius for this vulnerability can extend to any user interacting with the affected plugin, making it a significant concern for businesses relying on the integrity of their prize offerings.
Given the current threat landscape, organizations should address this vulnerability in their priority patch cycle. While the absence of known exploits reduces the immediate threat, proactive remediation is essential to mitigate any potential risks.
With the CVSS score indicating a medium severity, organizations should not underestimate the potential impact of this vulnerability, as even medium-severity issues can lead to significant consequences if exploited.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch for the Spin Wheel plugin, specifically up to and including version 2.1.0, are affected by this vulnerability.
Mitigation & Remediation
Organizations should apply the latest updates to the Spin Wheel plugin as soon as possible. If a patch is unavailable, consider implementing workarounds such as disabling the plugin until a secure version is released. Additionally, organizations may benefit from configuration hardening to limit prize manipulation.
For comprehensive security strategies, organizations should evaluate their entire application security posture through application security assessments and consider engaging in continuous security testing to identify similar vulnerabilities.
Detection Guidance
To identify potential exploitation attempts, organizations should monitor logs for unusual prize selections and unexpected changes in prize distributions. Behavioral anomalies in user interactions with the Spin Wheel feature should also be flagged for review.
AppSecure Threat Intelligence Insight
The Spin Wheel plugin's vulnerability highlights the importance of server-side validation in application design. As attackers become more adept at exploiting client-side weaknesses, security teams must adopt a proactive stance in identifying and mitigating such vulnerabilities. The lessons learned from this incident should drive improvements in security processes, ensuring that client-supplied data is never trusted without proper validation.
Organizations looking to enhance their security posture should explore our vulnerability management programs to identify and address similar weaknesses proactively.
Furthermore, integrating penetration testing methodologies into the development process can help organizations stay ahead of security threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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