cvedb.io
CVE-2026-33371
MEDIUM · CVSS 4.3
EPSS exploitation probability: 0%
Published 2026-03-20T14:16:16.240 · Last modified 2026-06-17T10:37:23.410

Summary

An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. An XML External Entity (XXE) vulnerability exists in the Zimbra Exchange Web Services (EWS) SOAP interface due to improper handling of XML input. An authenticated attacker can submit crafted XML data that is processed by an XML parser with external entity resolution enabled. Successful exploitation may allow disclosure of sensitive local files from the server.

Affected products

synacor — zimbra_collaboration_suite

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.