Zimbra Collaboration Suite (ZCS) 10.0 and 10.1 contains a reflected cross-site scripting (XSS) vulnerability in the Classic Webmail REST interface (/h/rest). The application fails to properly sanitize user-supplied input, allowing an unauthenticated attacker to inject malicious JavaScript into a crafted URL. When a victim user accesses the link, the injected script executes in the context of the Zimbra webmail application, which could allow the attacker to perform actions on behalf of the victim.
History

Fri, 20 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Description Zimbra Collaboration Suite (ZCS) 10.0 and 10.1 contains a reflected cross-site scripting (XSS) vulnerability in the Classic Webmail REST interface (/h/rest). The application fails to properly sanitize user-supplied input, allowing an unauthenticated attacker to inject malicious JavaScript into a crafted URL. When a victim user accesses the link, the injected script executes in the context of the Zimbra webmail application, which could allow the attacker to perform actions on behalf of the victim.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-03-20T14:04:41.938Z

Reserved: 2026-03-19T00:00:00.000Z

Link: CVE-2026-33368

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-20T14:16:15.810

Modified: 2026-03-20T14:16:15.810

Link: CVE-2026-33368

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.