CVE-2025-49954 identifies a reflected Cross-site Scripting (XSS) vulnerability in the mithra62 WP-Click-Tracker WordPress plugin, affecting versions up to and including 0.7.3. The vulnerability is caused by improper neutralization of user-supplied input during web page generation, which allows attackers to inject malicious JavaScript code that is reflected back to users. This reflected XSS does not require authentication or elevated privileges but does require user interaction, such as clicking on a maliciously crafted URL. The vulnerability's CVSS score is 7.1 (high), reflecting its network attack vector, low attack complexity, no privileges required, user interaction needed, and a scope change that affects confidentiality, integrity, and availability. Exploitation could lead to session hijacking, theft of sensitive information, website defacement, or redirection to malicious sites, impacting both end-users and site administrators. Although no known exploits are currently reported in the wild, the widespread use of WordPress and the plugin in question increases the risk of future exploitation. The vulnerability is particularly relevant for organizations relying on WP-Click-Tracker for click analytics, as attackers could leverage this flaw to compromise user trust and data integrity. The lack of an official patch at the time of disclosure necessitates immediate mitigation efforts, including input validation, output encoding, and monitoring for suspicious activity. The vulnerability was reserved in June 2025 and published in October 2025, indicating recent discovery and disclosure.

For European organizations, this vulnerability poses significant risks to web applications using the WP-Click-Tracker plugin. Exploitation can lead to unauthorized access to user sessions, data leakage, and potential defacement or redirection attacks, undermining user trust and potentially causing reputational damage. Confidentiality is compromised through session hijacking or theft of sensitive data, integrity is affected by possible content manipulation, and availability may be impacted if attackers disrupt service or redirect users. Organizations in sectors such as e-commerce, media, and public services that rely on WordPress for their web presence are particularly vulnerable. The reflected XSS nature means phishing campaigns could be enhanced by leveraging trusted domains, increasing the likelihood of successful social engineering attacks. Additionally, compliance with GDPR and other data protection regulations could be jeopardized if personal data is exposed or mishandled due to this vulnerability. The absence of known exploits currently provides a window for proactive mitigation, but the high CVSS score underscores the urgency of addressing the issue.

1. Immediately monitor for updates or patches from mithra62 for the WP-Click-Tracker plugin and apply them as soon as they become available. 2. Until an official patch is released, implement strict input validation on all user-supplied data that the plugin processes, ensuring that potentially malicious characters are sanitized or rejected. 3. Apply context-appropriate output encoding (e.g., HTML entity encoding) to all dynamic content generated by the plugin to prevent script execution. 4. Employ Web Application Firewalls (WAFs) with rules designed to detect and block reflected XSS attack patterns targeting the plugin. 5. Conduct regular security audits and penetration testing focusing on the plugin’s functionality to identify any residual or related vulnerabilities. 6. Educate users and administrators about the risks of clicking on suspicious links, especially those that could exploit reflected XSS vulnerabilities. 7. Consider temporarily disabling or replacing the WP-Click-Tracker plugin with alternative solutions that have a stronger security posture until the vulnerability is resolved. 8. Monitor web server and application logs for unusual requests or error patterns that may indicate attempted exploitation.