Zimbra Collaboration Suite (ZCS) 10.0 and 10.1 contains a reflected cross-site scripting (XSS) vulnerability in the Classic Webmail REST interface (/h/rest). The application fails to properly sanitize user-supplied input, allowing an unauthenticated attacker to inject malicious JavaScript into a crafted URL. When a victim user accesses the link, the injected script executes in the context of the Zimbra webmail application, which could allow the attacker to perform actions on behalf of the victim.
Metrics
Affected Vendors & Products
References
History
Thu, 02 Apr 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Zimbra Collaboration Suite Reflected XSS in Classic Webmail REST Interface |
Wed, 01 Apr 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Synacor
Synacor zimbra Collaboration Suite |
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| CPEs | cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Synacor
Synacor zimbra Collaboration Suite |
Wed, 25 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Zimbra Collaboration Suite Reflected XSS in Classic Webmail REST Interface |
Mon, 23 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-79 | |
| Metrics |
cvssV3_1
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Mon, 23 Mar 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zimbra
Zimbra collaboration |
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| Vendors & Products |
Zimbra
Zimbra collaboration |
Fri, 20 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Zimbra Collaboration Suite (ZCS) 10.0 and 10.1 contains a reflected cross-site scripting (XSS) vulnerability in the Classic Webmail REST interface (/h/rest). The application fails to properly sanitize user-supplied input, allowing an unauthenticated attacker to inject malicious JavaScript into a crafted URL. When a victim user accesses the link, the injected script executes in the context of the Zimbra webmail application, which could allow the attacker to perform actions on behalf of the victim. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-03-20T00:00:00.000Z
Updated: 2026-03-23T13:22:23.589Z
Reserved: 2026-03-19T00:00:00.000Z
Link: CVE-2026-33368
Updated: 2026-03-23T13:08:58.588Z
Status : Analyzed
Published: 2026-03-20T14:16:15.810
Modified: 2026-04-01T15:37:25.367
Link: CVE-2026-33368
No data.