CVE-2015-6541: Zimbra Collaboration Server

High severity, CVSS 8.8. EPSS: 3% chance of exploitation in the next 30 days.

Multiple cross-site request forgery (CSRF) vulnerabilities in the Mail interface in Zimbra Collaboration Server (ZCS) before 8.5 allow remote attackers to hijack the authentication of arbitrary users for requests that change account preferences via a SOAP request to service/soap/BatchRequest.

Affected products

• Zimbra Zimbra Collaboration Server: up to and including 8.0.9

Published 2016-04-08. Last modified 2026-06-17.