Patch Now! Back-to-Back Synacor Zimbra Updates Fix Two Sets of Critical Vulnerabilities
In July 2026, Zimbra released two security patches for multiple vulnerabilities affecting the Classic Web Client and other components of Zimbra Collaboration Suite (ZCS). Version 10.1.19 addressed a stored cross-site scripting (XSS) flaw that has not been assigned a CVE. Version 10.1.20 fixed a command-injection issue in the SNMP monitoring component, four additional stored XSS […]



