CVE-2020-7796 — Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability
CVE-2020-7796: Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Synacor |
| Product | Zimbra Collaboration Suite |
| Date added | 2026-02-17 |
| Due date | 2026-03-10 |
| Ransomware campaign use | Unknown |
Description
Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery vulnerability if WebEx zimlet installed and zimlet JSP is enabled.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7 ; https://nvd.nist.gov/vuln/detail/CVE-2020-7796
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-7796
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog