CSRF in Synacor Zimbra_collaboration_suite
CVE-2026-33373
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…
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Synacor Zimbra_collaboration_suite
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Release Notes, Vendor Advisory)
- cve@mitre.org (Product)
- cve@mitre.org (Release Notes)
- cve@mitre.org (Release Notes)
Frequently asked questions
- What is CVE-2026-33373?
- CVE-2026-33373 is a high-severity vulnerability in Synacor Zimbra_collaboration_suite, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-03-30.
- How severe is CVE-2026-33373?
- High severity. CVSS v3 base score is 8.8 out of 10.