Firetruck

CVE-2025-66376

KEV
Updated Mar 19, 2026 · PUBLISHED
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Description

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability in the Classic UI where attackers could abuse Cascading Style Sheets (CSS) @import directives in email HTML.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
CollaborationZimbra / Collaboration>= 10.0, < 10.0.18affected
CollaborationZimbra / Collaboration>= 10.1, < 10.1.13affected