CVE-2024-27443
MEDIUM KEV NUCLEIZimbra Collaboration - Cross-Site Scripting (XSS)
Title source: nucleiExploitation Summary
CVE-2024-27443 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added May 19, 2025. EIP tracks 1 public exploit from researchers including HORKimhab. A Nuclei detection template is also available.
AI-analyzed exploit summary The repository contains a markdown file describing CVE-2024-27443, a stored XSS vulnerability in Zimbra Collaboration (ZCS) 9.0 and 10.0's CalendarInvite feature. The file outlines the vulnerability details but lacks any functional exploit code or technical depth.
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.
Exploits (1)
The repository contains a markdown file describing CVE-2024-27443, a stored XSS vulnerability in Zimbra Collaboration (ZCS) 9.0 and 10.0's CalendarInvite feature. The file outlines the vulnerability details but lacks any functional exploit code or technical depth.
Nuclei Templates (1)
http.favicon.hash:"1624375939" || http.html:"zimbra collaboration suite web client" || http.favicon.hash:"475145467"
icon_hash="1624375939" || app="zimbra-邮件系统" || body="zimbra collaboration suite web client" || icon_hash="475145467"
References (4)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N