CVE-2024-13413 identifies a reflected Cross-Site Scripting (XSS) vulnerability in the ProductDyno plugin for WordPress, affecting all versions up to and including 1.0.24. The vulnerability stems from insufficient input sanitization and output escaping of the ‘res’ parameter, which is used during web page generation. An unauthenticated attacker can craft a malicious URL containing a script payload in the ‘res’ parameter. When a victim clicks this URL, the injected script executes in the context of the victim’s browser, potentially allowing theft of cookies, session tokens, or other sensitive information, as well as manipulation of the displayed content. This vulnerability does not require authentication but does require user interaction (clicking a malicious link). The CVSS 3.1 base score is 6.1, indicating medium severity, with attack vector network, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality and integrity but not availability. The vulnerability is potentially a duplicate of CVE-2025-22320, suggesting similar underlying issues. No patches or exploit code are currently publicly available, but the risk remains significant due to the widespread use of WordPress and the ProductDyno plugin in e-commerce and digital product delivery environments.

The primary impact of this vulnerability is on confidentiality and integrity, as attackers can execute arbitrary scripts in the context of authenticated users. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. Although availability is not affected, the compromise of user accounts or data integrity can have serious consequences, including reputational damage, financial loss, and regulatory penalties. Organizations using ProductDyno for managing digital products or memberships may face targeted phishing campaigns leveraging this vulnerability. The requirement for user interaction limits automated exploitation but does not eliminate risk, especially in environments with high user engagement or where attackers can distribute malicious links via email or social media. The lack of known exploits in the wild suggests the vulnerability is not yet actively exploited, but this could change rapidly once public awareness increases.

1. Immediate mitigation involves updating the ProductDyno plugin to a version that addresses this vulnerability once released by the vendor. 2. Until a patch is available, implement Web Application Firewall (WAF) rules to detect and block malicious payloads targeting the ‘res’ parameter. 3. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 4. Educate users about the risks of clicking unsolicited or suspicious links, especially those related to the affected product. 5. Review and harden input validation and output encoding practices in custom WordPress plugins or themes to prevent similar issues. 6. Monitor logs for unusual URL parameters or suspicious activity related to the ‘res’ parameter. 7. Consider disabling or restricting access to the vulnerable functionality if feasible until a patch is applied. 8. Conduct regular security assessments and penetration testing focused on XSS and other injection vulnerabilities in WordPress environments.