CVE-2023-48432: Zimbra Collaboration

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15, 9.0, and 10.0. XSS, with resultant session stealing, can occur via JavaScript code in a link (for a webmail redirection endpoint) within en email message, e.g., if a victim clicks on that link within Zimbra webmail.

Affected products

• Zimbra Collaboration: from 10.0.0, before 10.0.6 (fixed in 10.0.6); version 8.8.15 only; version 9.0.0 only

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