CVE-2024-27443
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | n/a |
| Product | n/a |
| Published | Aug 12, 2024 |
| Last Updated | Oct 21, 2025 |
⚠️ Actively Exploited — Act Now
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Affected Versions
n/a / n/a
n/a
References
wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.7#Security_Fixes wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P39#Security_Fixes welivesecurity.com: https://www.welivesecurity.com/en/eset-research/operation-roundpress/ cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27443