Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

When

2026-04-20 00:00 UTC · day precision

Where

Global (internet)

Category

cyber_exploit

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.

Sources

• CISA ↗ · first seen 2026-04-20 00:00 UTC

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