CVE-2026-33372 in Collaboration Suite
Summary
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.
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Responsible
MITRE
Reservation
03/19/2026
Disclosure
03/20/2026
Status
Confirmed
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 352084 | Zimbra Collaboration Suite Request Header cross-site request forgery | 352 | Not defined | Not defined | CVE-2026-33372 |