Medium severity6.1NVD Advisory· Published Dec 15, 2021· Updated Jun 17, 2026

CVE-2020-18985

Description

An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.

Affected products

Zimbra/Zimbra Collaborationdescription
Zimbra/Zimbra Collaboration (ZCS)llm-fuzzy
Range: = 8.8.12
VMware/Zimbra Collaboration Suite
cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.12:-:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

github.com/buxu/bug/issues/3nvdIssue TrackingThird Party Advisory

News mentions

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