Overview
Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery vulnerability if WebEx zimlet installed and zimlet JSP is enabled.
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7 ; https://nvd.nist.gov/vuln/detail/CVE-2020-7796
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2020-7796 |
| Vendor / Product | Synacor — Zimbra Collaboration Suite |
| NVD Published | 2020-02-18 |
| NVD Last Modified | 2026-02-18 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-918 |
| CISA KEV Added | 2026-02-17 |
| CISA KEV Deadline | 2026-03-10 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2026-03-10.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2026-02-17 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2026-03-10 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2020-7796 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |