CVE-2016-3403

8.8 highEPSS 1.4%

Multiple cross-site request forgery (CSRF) vulnerabilities in the Admin Console in Zimbra Collaboration before 8.6.0 Patch 8 allow remote attackers to hijack the authentication of administrators for requests that (1) add, (2) modify, or (3) remove accounts by leveraging failure to use of a CSRF token and perform referer header checks, aka bugs 100885 and 100899.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-352
Published: 2017-05-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

synacor:zimbra_collaboration_suite

References

http://seclists.org/fulldisclosure/2017/Jan/30
http://www.securityfocus.com/bid/95383
https://bugzilla.zimbra.com/show_bug.cgi?id=100885
https://bugzilla.zimbra.com/show_bug.cgi?id=100899
https://sysdream.com/news/lab/2017-01-12-cve-2016-3403-multiple-csrf-in-zimbra-administration-interface/

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