CVE-2024-34460 identifies a Cross-Site Scripting (XSS) vulnerability in the Tree Explorer tool, part of the Organizer component of the Zenario content management system (CMS) prior to version 9.5.60602. XSS vulnerabilities occur when an application includes untrusted input in web pages without proper validation or escaping, allowing attackers to inject malicious scripts that execute in users' browsers. This particular vulnerability does not require authentication or user interaction, making it remotely exploitable by an unauthenticated attacker. The vulnerability impacts confidentiality by potentially exposing sensitive information through script execution and availability by enabling denial-of-service conditions via script-based attacks. The affected component was removed in version 9.5.60602, effectively mitigating the vulnerability in subsequent releases. The CVSS v3.1 score of 6.5 reflects a medium severity, with an attack vector of network (remote), low attack complexity, no privileges required, and no user interaction needed. No public exploits or active exploitation have been reported to date. The vulnerability is classified under CWE-79, which covers improper neutralization of input leading to XSS. Organizations running affected versions of Zenario should consider this vulnerability a moderate risk and prioritize remediation.

The primary impact of CVE-2024-34460 is the potential for remote attackers to execute arbitrary scripts in the context of the vulnerable Zenario CMS instance. This can lead to the theft of session tokens, user credentials, or other sensitive data accessible via the browser, compromising confidentiality. Additionally, malicious scripts could manipulate the user interface or perform unauthorized actions, potentially affecting the integrity of displayed content. The vulnerability may also be leveraged to conduct denial-of-service attacks by causing browser crashes or excessive resource consumption, impacting availability. Since no authentication or user interaction is required, the attack surface is broad, increasing the risk for organizations exposing the vulnerable component to the internet. However, the removal of the affected component in later versions limits the scope of impact to legacy systems. Organizations relying on Zenario CMS for content management and web presence may face reputational damage, data leakage, and operational disruptions if exploited.

To mitigate CVE-2024-34460, organizations should upgrade Zenario CMS to version 9.5.60602 or later, where the vulnerable Tree Explorer component has been removed. If immediate upgrading is not feasible, administrators should restrict access to the Organizer component by implementing network-level controls such as IP whitelisting or VPN access to limit exposure. Web application firewalls (WAFs) can be configured to detect and block common XSS attack patterns targeting the vulnerable endpoints. Additionally, applying strict Content Security Policy (CSP) headers can reduce the impact of injected scripts by restricting script execution sources. Regularly auditing and sanitizing user inputs within the CMS and monitoring logs for suspicious activity can help detect attempted exploitation. Finally, educating users and administrators about the risks of XSS and maintaining timely patch management practices are essential to reduce exposure.