Critical Zimbra Flaw Could Let Crafted Emails Run Malicious Code in User Sessions

Zimbra is urging customers to apply updates to address a critical security vulnerability impacting the Classic Web Client that could result in arbitrary code execution. The vulnerability has been described as a case of stored cross-site scripting (XSS) that could allow specially crafted emails to execute malicious scripts in a user's session. It has yet to be assigned a CVE identifier.