Synacor Zimbra Collaboration Suite (ZCS) Vulnerability
Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.
CVSS Score
9.8
CRITICAL
Published
20 Apr 2026 00:00
Modified
N/A
Vendor
Synacor
Product
Zimbra Collaboration Suite (ZCS)
Source
CIRCL
Affected Versions
Fix
Vendor Patch / Mitigation Available
Weaknesses (CWE)
CWE-79
Affected Systems
Synacor
Zimbra Collaboration Suite (ZCS)
Synacor
Zimbra Collaboration Suite (ZCS)
External Links
KEV Status
Known Exploited Vulnerability