An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Modern recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim.
History

Sat, 26 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Zimbra
Zimbra zimbra Collaboration Suite
Vendors & Products Zimbra
Zimbra zimbra Collaboration Suite

Fri, 25 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
Description An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Modern recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim.
Title Zimbra Collaboration Suite Modern Web Client Stored Cross-Site Scripting via Forged Share Invitation
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published: 2026-09-25T13:56:04.016Z

Updated: 2026-09-25T16:11:07.666Z

Reserved: 2026-09-18T12:22:38.559Z

Link: CVE-2026-93642

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-25T14:17:23.423

Modified: 2026-09-29T21:29:07.663

Link: CVE-2026-93642

cve-icon Redhat

No data.