# CVE-2022-24682

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.

- Page: https://www.vulneraibility.com/cve/CVE-2022-24682
- CVSS: 6.1
- Known exploited: yes, in CISA KEV since 2022-02-25; CISA due date 2022-03-11; known ransomware use
- EPSS: 30.93% (percentile 98.3)
- Detection templates only, no public exploit found: 1 Nuclei template
- CISA SSVC: exploitation active, automatable no, technical impact partial (assessed 2022-02-04)
- Weakness: CWE-116
- Published: 2022-02-09

## Affected

- synacor:zimbra_collaboration_suite

## References

- [other] https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
- [other] https://wiki.zimbra.com/wiki/Security_Center
- [other] https://www.volexity.com/blog/2022/02/03/operation-emailthief-active-exploitation-of-zero-day-xss-vulnerability-in-zimbra/
- [other] https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/
- [other] https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24682

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.