CVE-2020-7796: Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability

CVE ID

CVE-2020-7796

Vulnerability Name

Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability

• Project: Synacor
• Product: Zimbra Collaboration Suite

Date

• Date Added: 2026-02-17
• Due Date: 2026-03-10

Description

Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery vulnerability if WebEx zimlet installed and zimlet JSP is enabled.

Known To Be Used in Ransomware Campaigns?

Unknown

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.

Additional Notes

https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7 ; https://nvd.nist.gov/vuln/detail/CVE-2020-7796

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