CVE-2024-27443
KEVSynacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
View CVE record →- Vendor / Project
- Synacor
- Product
- Zimbra Collaboration Suite (ZCS)
- Date added
- May 19, 2025
- Due date
- Jun 9, 2025
- Known ransomware use
- Unknown
- CWEs
- CWE-79
Description
Zimbra Collaboration contains a cross-site scripting (XSS) vulnerability in the CalendarInvite feature of the Zimbra webmail classic user interface. An attacker can exploit this vulnerability via an email message containing a crafted calendar header, leading to the execution of arbitrary JavaScript code.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.