What is CVE-2026-73572?

CVE-2026-73572 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-13.

How severe is CVE-2026-73572?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Zimbra Collaboration

CVE-2026-73572

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…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Zimbra Collaboration — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-73572?: CVE-2026-73572 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-13.
How severe is CVE-2026-73572?: Medium severity. CVSS v3 base score is 6.1 out of 10.