# CVE-2024-27443: A Synacor Zimbra Collaboration Suite (ZCS) bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-05-19)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Synacor Zimbra Collaboration Suite (ZCS) (CVE-2024-27443) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2024-27443. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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.

## Sources
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P46#Security_Fixes
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P39#Security_Fixes
- https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.7#Security_Fixes
- https://nvd.nist.gov/vuln/detail/CVE-2024-27443
- https://nvd.nist.gov/vuln/detail/CVE-2024-27443

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.