Researchers have identified that over 10,000 instances of the Zimbra Collaboration Suite (ZCS) are exposed to the internet and are vulnerable to ongoing cross-site scripting (XSS) attacks. This security flaw allows attackers to execute malicious scripts in users' browsers, which can lead to unauthorized access to sensitive information. The affected servers could be utilized by various organizations for email and collaboration services, making them prime targets for exploitation. The ongoing nature of these attacks means that users and administrators should take immediate action to secure their systems. Ignoring this vulnerability could lead to severe data breaches and loss of confidential information.