Vulnerability Description
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. A Cross-Site Scripting (XSS) vulnerability exists in the CalendarInvite feature of the Zimbra webmail classic user interface, because of improper input validation in the handling of the calendar header. An attacker can exploit this via an email message containing a crafted calendar header with an embedded XSS payload. When a victim views this message in the Zimbra webmail classic interface, the payload is executed in the context of the victim's session, potentially leading to execution of arbitrary JavaScript code.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zimbra | Collaboration | >= 10.0.0, < 10.0.7 |
Related Weaknesses (CWE)
References
- https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.7#Security_FixesRelease Notes
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P39#Security_FixesRelease Notes
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-US Government Resource
- https://www.welivesecurity.com/en/eset-research/operation-roundpress/Press/Media Coverage
FAQ
What is CVE-2024-27443?
CVE-2024-27443 is a vulnerability with a CVSS score of 6.1 (MEDIUM). An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. A Cross-Site Scripting (XSS) vulnerability exists in the CalendarInvite feature of the Zimbra webmail classic user interface, becaus...
How severe is CVE-2024-27443?
CVE-2024-27443 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-27443?
Check the references section above for vendor advisories and patch information. Affected products include: Zimbra Collaboration.