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Servers and applications

CVE-2016-3403

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
High 8.8
Published
17 May 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.4% in the next 30 daysHigher than 72% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Cross-site request forgery (CWE-352)
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
Zimbra CollaborationServers and applications · cpe:a:synacor:zimbra_collaboration_suite
  • Every version up to 8.6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-3403
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-3403