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CVE-2022-27926: Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
Synacor Zimbra Collaboration Suite (ZCS) · in CISA KEV since 2023-04-03
2023-04-03added to KEV
2023-04-24federal remediation due date
17.63%EPSS exploit probability (30 days) 97.0th percentile
6.1 MEDIUMCVSS 3.1
Unknownknown ransomware use
347days from NVD publication to KEV
What it is
Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability by allowing an endpoint URL to accept parameters without sanitizing.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-79;CWE-138 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD published | 2022-04-21 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2022-27926.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.