CVE-2026-33372

MEDIUM EPSS 4.0%
Published Mar 20, 20263mo ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Mar 20, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A cross-site request forgery (CSRF) vulnerability exists in Zimbra Webmail due to improper validation of CSRF tokens. The application accepts CSRF tokens supplied within the request body instead of requiring them through the expected request header. An attacker can exploit this issue by tricking an authenticated user into submitting a crafted request. This may allow unauthorized actions to be performed on behalf of the victim.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-352 Cross-Site Request Forgery (CSRF) Authentication

Affected Products 1

VendorProductVersionRange
synacorzimbra_collaboration_suite*≥10.0.0  –  <10.1.16

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.