CVE-2026-33372

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-33372
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.

5.4 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://wiki.zimbra.com/wiki/Security_Center Vendor Advisory Release Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes Release Notes
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Product
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
History

01 Apr 2026, 15:32

Type Values Removed Values Added
First Time Synacor zimbra Collaboration Suite
Synacor
CPE cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
References () https://wiki.zimbra.com/wiki/Security_Center - () https://wiki.zimbra.com/wiki/Security_Center - Vendor Advisory, Release Notes
References () https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes - () https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes - Release Notes
References () https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy - () https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy - Product
References () https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories - () https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories - Vendor Advisory
Summary
  • (es) Se descubrió un problema en Zimbra Collaboration (ZCS) 10.0 y 10.1. Existe una vulnerabilidad de falsificación de petición en sitios cruzados (CSRF) en Zimbra Webmail debido a una validación incorrecta de los tokens CSRF. La aplicación acepta tokens CSRF suministrados dentro del cuerpo de la petición en lugar de requerirlos a través de la cabecera de petición esperada. Un atacante puede explotar este problema engañando a un usuario autenticado para que envíe una petición manipulada. Esto puede permitir que se realicen acciones no autorizadas en nombre de la víctima.

23 Mar 2026, 14:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.4
CWE CWE-352

20 Mar 2026, 14:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-20 14:16

Updated : 2026-04-01 15:32

NVD link : CVE-2026-33372

Mitre link : CVE-2026-33372

CVE.ORG link : CVE-2026-33372

JSON object : View

Products Affected

synacor

  • zimbra_collaboration_suite
CWE
CWE-352

Cross-Site Request Forgery (CSRF)