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Home / Vulnerability Intelligence / CVE-2026-33373

CVE-2026-33373 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: April 1, 2026

Zimbra Collaboration - Cross-Site Request Forgery

Published: March 30, 2026Updated: April 1, 2026Remote Exploitable

Overview

Zimbra Collaboration (ZCS) 10.0 and 10.1 contain a cross-site request forgery caused by missing CSRF protection on authentication tokens during account state transitions, letting attackers induce victims to perform sensitive actions, exploit requires victim interaction.

Severity & Score

Severity: High
CVSS Score: 8.8
EPSS Score: 2.7%(Probability of exploitation in next 30 days)

Impact

Attackers can trick authenticated users into performing sensitive account actions like disabling two-factor authentication.

Mitigation

Update to the latest version with consistent CSRF protection on authentication tokens.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Apr 1, 2026

🟠 CVE-2026-33373 - High (8.8) 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 tr... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-33373/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Apr 1, 2026

🟠 CVE-2026-33373 - High (8.8) 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 tr... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-33373/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-33373
Severity
High
CVSS Score
8.8
Type
cross_site_request_forgery
Status
unconfirmed
EPSS
2.7%
Social Posts
2

CWE

  • CWE-352

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Score

2.7%Probability of exploitation in the next 30 days