CVE-2024-27443

Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
24.6%
EPSS
98%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

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.

Vendor
Synacor
Product
Zimbra Collaboration Suite (ZCS)
Added to KEV
May 19, 2025
Remediation due
Jun 9, 2025 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-79
EPSS
24.6% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded