CVE-2023-45206: Zimbra Collaboration

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15, 9.0, and 10.0. Through the help document endpoint in webmail, an attacker can inject JavaScript or HTML code that leads to cross-site scripting (XSS). (Adding an adequate message to avoid malicious code will mitigate this issue.)

Affected products

• Zimbra Collaboration: from 10.0.0, before 10.0.5 (fixed in 10.0.5); version 8.8.15 only; version 9.0.0 only

Published 2024-02-13. Last modified 2026-06-17.