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CVE-2022-24682
MEDIUM6.1
CISA KEV
Published 2022-02-09 · Updated 2026-08-07 · Source cve@mitre.org
Description
An issue was discovered in the Calendar feature in Zimbra Collaboration Suite 8.8.x before 8.8.15 patch 30 (update 1), as exploited in the wild starting in December 2021. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE-116CWE-116
CISA Known-Exploited Vulnerability
Product: Synacor — Zimbra Collaborate Suite (ZCS)
Name: Synacor Zimbra Collaborate Suite (ZCS) Cross-Site Scripting Vulnerability
Date added: 2022-02-25 · Due: 2022-03-11
USED IN RANSOMWARE
Required action: Apply updates per vendor instructions.
References
- https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
- https://www.volexity.com/blog/2022/02/03/operation-emailthief-active-exploitation-of-zero-day-xss-vulnerability-in-zimbra/
- https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30

