CVE-2017-17703: Synacor Zimbra Collaboration Suite

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

Synacor Zimbra Collaboration Suite (ZCS) before 8.8.3 has Persistent XSS.

Affected products

• Synacor Zimbra Collaboration Suite: before 8.8.3 (fixed in 8.8.3)

Published 2018-02-04. Last modified 2026-06-17.