Synacor ( Zimbra Collaboration Suite (ZCS)) Data Breach

Synacor ( Zimbra Collaboration Suite (ZCS)) experienced a data breach that was reported on January 22, 2026. Synacor Zimbra Collaboration Suite (ZCS) contains a PHP remote file inclusion vulnerability that could allow for remote attackers to craft requests to the /h/rest endpoint to influence internal reques

Key Facts

Organization
Synacor ( Zimbra Collaboration Suite (ZCS))
Date Reported
January 22, 2026
Incident Type
insider
Industry
Technology
Severity Score
5/10
Confidence Level
high
Tags
insider

Source

View original source - External link to primary source documentation

Understanding insider Incidents

Insider breaches involve employees or contractors misusing legitimate access. Data loss prevention and user behavior analytics help detect anomalous activity.