CVE-2025-62884 identifies a missing authorization vulnerability in the Coupon Affiliates WordPress plugin developed by Elliot Sowersby / RelyWP, specifically affecting versions up to 7.0.3. The vulnerability arises because certain plugin functionalities are not properly constrained by Access Control Lists (ACLs), allowing unauthorized users to invoke functions that should require specific permissions. This can lead to unauthorized access to sensitive coupon affiliate management features, potentially enabling attackers to manipulate coupon usage data, affiliate commissions, or other related information. The vulnerability does not require prior authentication, increasing its risk profile, and no user interaction is necessary beyond accessing the vulnerable functionality. Although no known exploits are currently in the wild, the lack of authorization checks makes exploitation straightforward for attackers familiar with the plugin’s internals. The plugin is commonly used in WordPress-based e-commerce and marketing sites to manage affiliate coupons, making it a valuable target for attackers aiming to disrupt affiliate revenue streams or manipulate marketing data. The absence of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical details suggest a significant risk due to the direct bypass of authorization controls. No official patches or mitigation links are currently provided, emphasizing the need for proactive defensive measures.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of affiliate marketing data and coupon management systems. Unauthorized access could allow attackers to alter coupon usage records, manipulate affiliate payouts, or disrupt marketing campaigns, potentially leading to financial losses and reputational damage. Organizations relying heavily on affiliate marketing through WordPress sites using Coupon Affiliates are particularly vulnerable. The impact extends to e-commerce platforms, marketing agencies, and any business leveraging affiliate coupons to drive sales. Given the plugin’s role in revenue tracking, exploitation could also affect financial reporting accuracy. Additionally, unauthorized access might expose sensitive business information related to marketing strategies and partner relationships. The vulnerability could also be leveraged as a foothold for further attacks within the affected WordPress environment, increasing the overall risk posture. European data protection regulations such as GDPR may impose additional compliance risks if unauthorized access leads to personal data exposure. The lack of known exploits currently reduces immediate risk but does not diminish the potential impact if exploited.

Organizations should immediately audit their WordPress installations to identify the presence of the Coupon Affiliates plugin and verify the version in use. Until an official patch is released, restrict access to the plugin’s administrative and functional endpoints using web application firewalls (WAFs) or reverse proxies to enforce IP whitelisting or authentication. Implement strict WordPress user role management to ensure only trusted administrators have access to affiliate coupon management features. Monitor logs for unusual access patterns or attempts to invoke plugin functions without proper authorization. Consider temporarily disabling the plugin if it is not critical to business operations. Engage with the plugin vendor or community to obtain updates or patches as soon as they become available. Regularly update WordPress core and all plugins to minimize exposure to known vulnerabilities. Conduct penetration testing focused on authorization controls within WordPress environments to detect similar issues proactively. Finally, educate administrators about the risks of missing authorization vulnerabilities and the importance of timely patching.