4.3

CVE-2026-33371

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Synacor ≫ Zimbra Collaboration Suite Version >= 10.0.0 < 10.1.16
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.14
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-611 Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
Vendor Advisory
https://wiki.zimbra.com/wiki/Security_Center
Vendor Advisory
Release Notes
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
Product
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes
Release Notes