CVE-2025-13137 is a reflected Cross-Site Scripting (XSS) vulnerability identified in the Live Sales Notification for Woocommerce – Woomotiv plugin for WordPress, affecting all versions up to and including 3.6.3. The vulnerability stems from improper neutralization of input during web page generation, specifically insufficient sanitization and output escaping of the 'woomotiv_limit' parameter. This flaw allows unauthenticated attackers to craft malicious URLs containing JavaScript payloads that, when clicked by a victim, execute within the context of the vulnerable website. The attack vector is network-based with no privileges required, but it requires user interaction (clicking a malicious link). The vulnerability impacts confidentiality and integrity by enabling attackers to steal session cookies, perform actions on behalf of users, or conduct phishing attacks. The CVSS v3.1 score is 6.1, indicating medium severity, with a scope change as the vulnerability affects user sessions beyond the attacker’s privileges. No known exploits have been reported in the wild yet. The plugin is widely used in Woocommerce-based e-commerce sites, which are prevalent in Europe. The vulnerability highlights the importance of proper input validation and output encoding in web applications, especially plugins that dynamically generate content based on user-supplied parameters. While no patch links are currently available, users should monitor vendor advisories for updates. In the interim, applying web application firewall (WAF) rules to detect and block suspicious input patterns and educating users about phishing risks can reduce exploitation likelihood.

The primary impact of CVE-2025-13137 is the compromise of confidentiality and integrity for users interacting with vulnerable Woocommerce sites using the affected plugin. Attackers can execute arbitrary scripts in victims’ browsers, potentially stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions within the e-commerce platform. For European organizations, this can lead to customer data breaches, loss of trust, and reputational damage, especially for online retailers relying on Woocommerce. The reflected nature of the XSS means the attack requires user interaction, limiting automated exploitation but still posing significant risk through phishing campaigns. Given the widespread use of WordPress and Woocommerce in Europe’s e-commerce sector, the vulnerability could affect a large number of small to medium enterprises. Additionally, the scope of the vulnerability allows attackers to affect users beyond their own privileges, increasing the potential damage. While availability is not impacted, the integrity and confidentiality risks warrant prompt attention. Regulatory compliance risks also arise under GDPR if personal data is compromised through exploitation.

1. Monitor the plugin vendor’s official channels for a security patch and apply updates immediately upon release. 2. Until a patch is available, implement strict input validation and output encoding on the 'woomotiv_limit' parameter via custom code or security plugins to neutralize malicious scripts. 3. Deploy a Web Application Firewall (WAF) with rules targeting reflected XSS payloads, particularly those exploiting query parameters in Woocommerce plugins. 4. Educate staff and users about phishing risks and advise caution when clicking on unsolicited or suspicious links. 5. Conduct regular security audits of WordPress plugins and remove or replace those that are outdated or unsupported. 6. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on e-commerce sites. 7. Monitor web server and application logs for unusual request patterns targeting the vulnerable parameter. 8. Consider isolating or sandboxing the plugin’s output if feasible to limit script execution context. These measures go beyond generic advice by focusing on the specific vulnerable parameter and the plugin’s role within Woocommerce environments.