Security Advisory

CVE-2026-73572

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-13 15:21:28

Last updated 2026-08-13 15:57:54

Assigner mitre

CVSS score not scored

State PUBLISHED

Description

In Zimbra Collaboration (ZCS) before 10.1.17, a stored cross-site scripting (XSS) vulnerability exists in the Zimbra Classic Web Client due to insufficient sanitization of specific attachment content during inline preview. An attacker can send a crafted email containing a malicious attachment that, when previewed by a user, executes arbitrary JavaScript within the victim's browser session. Successful exploitation may allow an attacker to perform unauthorized actions on behalf of the victim user, potentially leading to data exfiltration or unauthorized access to sensitive information.

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