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.
Metrics
CVSS 3.1 6.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/Vendor Advisory
- https://wiki.zimbra.com/wiki/Security_CenterVendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
- https://www.volexity.com/blog/2022/02/03/operation-emailthief-active-exploitation-of-zero-day-xss-vulnerability-in-zimbra/Exploit, Third Party Advisory
- https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/Vendor Advisory
- https://wiki.zimbra.com/wiki/Security_CenterVendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
- https://www.volexity.com/blog/2022/02/03/operation-emailthief-active-exploitation-of-zero-day-xss-vulnerability-in-zimbra/Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24682US Government Resource
Timeline
- Published
- Feb 9, 2022
- Last modified
- Aug 7, 2026
- Added to CISA KEV
- Feb 25, 2022
- NVD status
- Analyzed