CVE-2024-45512: Synacor Zimbra Collaboration Suite

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in webmail in Zimbra Collaboration (ZCS) through 10.1. An attacker can exploit this vulnerability by creating a folder in the Briefcase module with a malicious payload and sharing it with a victim. When the victim interacts with the folder share notification, the malicious script executes in their browser. This stored Cross-Site Scripting (XSS) vulnerability can lead to unauthorized actions within the victim's session.

Affected products

• Synacor Zimbra Collaboration Suite: before 9.0.0 (fixed in 9.0.0); from 10.0.0, before 10.0.9 (fixed in 10.0.9); version 9.0.0 only; version 10.1.0 only

Published 2024-11-21. Last modified 2026-06-17.