MEDIUMCVSS 6.1Actively exploited · CISA KEV since 2025-05-19Vulnerability
CVE-2024-27443
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.
Properties
- Vulnerability name
- Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
- First seen
- 2025-10-21T22:55:48+00:00
- Cvss score
- 6.1
- Epss score
- 0.24606
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2025-06-09
- Euvd assigner
- mitre
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2025-05-19T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2025-05-19
- Score
- 6.1
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 6.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Vendor project
- Synacor
Related Entities (41 · showing 23)
AFFECTS_PRODUCT (38 · showing 20)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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