An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A Cross-Site Request Forgery (CSRF) vulnerability exists in Zimbra Web Client due to the issuance of authentication tokens without CSRF protection during certain account state transitions. Specifically, tokens generated after operations such as enabling two-factor authentication or changing a password may lack CSRF enforcement. While such a token is active, authenticated SOAP requests that trigger token generation or state changes can be performed without CSRF validation. An attacker could exploit this by inducing a victim to submit crafted requests, potentially allowing sensitive account actions such as disabling two-factor authentication. The issue is mitigated by ensuring CSRF protection is consistently enforced for all issued authentication tokens.
History

Tue, 07 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Synacor
Synacor zimbra Collaboration Suite
CPEs cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
Vendors & Products Synacor
Synacor zimbra Collaboration Suite

Fri, 03 Apr 2026 06:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Title Cross‑Site Request Forgery Allowing Unauthorized Account State Changes in Zimbra Collaboration

Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Zimbra
Zimbra collaboration Suite
Vendors & Products Zimbra
Zimbra collaboration Suite

Tue, 31 Mar 2026 03:00:00 +0000

Type Values Removed Values Added
Title Cross‑Site Request Forgery Allowing Unauthorized Account State Changes in Zimbra Collaboration
Weaknesses CWE-352

Mon, 30 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Description An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A Cross-Site Request Forgery (CSRF) vulnerability exists in Zimbra Web Client due to the issuance of authentication tokens without CSRF protection during certain account state transitions. Specifically, tokens generated after operations such as enabling two-factor authentication or changing a password may lack CSRF enforcement. While such a token is active, authenticated SOAP requests that trigger token generation or state changes can be performed without CSRF validation. An attacker could exploit this by inducing a victim to submit crafted requests, potentially allowing sensitive account actions such as disabling two-factor authentication. The issue is mitigated by ensuring CSRF protection is consistently enforced for all issued authentication tokens.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-03-30T00:00:00.000Z

Updated: 2026-04-01T15:38:23.209Z

Reserved: 2026-03-19T00:00:00.000Z

Link: CVE-2026-33373

cve-icon Vulnrichment

Updated: 2026-04-01T15:38:17.298Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-30T15:16:29.410

Modified: 2026-04-07T18:50:47.480

Link: CVE-2026-33373

cve-icon Redhat

No data.