CVE-2022-24682 KEV
6.1
MEDIUM · CVSS 3.1 · EPSS 30.9% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2022-03-11.
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.
Scoring
| CVSS | 6.1 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 30.93% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-116 |
| On CISA KEV | yes — remediate by 2022-03-11 |
| Public exploit | none known |
| Published | 2022-02-09 |
| Last modified | 2026-08-07 |
CISA KEV
| Name | Synacor Zimbra Collaborate Suite (ZCS) Cross-Site Scripting Vulnerability |
|---|---|
| Added | 2022-02-25 |
| Due | 2022-03-11 |
| Vendor / product | Synacor / Zimbra Collaborate Suite (ZCS) |
| Ransomware use | known |
Affected (1)
| Vendor | Product |
|---|---|
| synacor | zimbra collaboration suite |
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
- 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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24682
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