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CVE-2023-37580

Medium CVSS 6.1 Known exploited

Published 2023-07-31 · last changed 2026-06-17 · added to CISA KEV 2023-07-27

This one is being exploited in the wild.

CISA added CVE-2023-37580 to the Known Exploited Vulnerabilities catalog on 2023-07-27. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2023-37580, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Zimbra Collaboration (ZCS) 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client.

Sources

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N