CVE-2020-7796
CriticalActively exploited (CISA KEV)
Description
Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Synacor Zimbra Collaboration Suite
PublishedFeb 18, 2020
First seenFeb 18, 2020
Added to KEVFeb 17, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Mar 10, 2026Update
- synacor zimbra_collaboration_suite8.8.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| synacor zimbra_collaboration_suite | v < 8.8.15, 8.8.15 | 8.8.15 |
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