CVE-2020-7796

Analyzed
Published: 18 Feb 2020, 21:14
Last modified:18 Feb 2026, 04:56

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
92.85% CRITICAL
93% probability +2.25%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Feb 2020, 21:14
Published
Vulnerability first disclosed
17 Feb 2026, 00:00
Added to CISA KEV
Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability
18 Feb 2026, 04:56
Last Modified
Vulnerability information updated
10 Mar 2026, 00:00
CISA Remediation Due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 92.85%• Percentile: 100%

Techniques & Countermeasures

  • CWE-918•Server-Side Request Forgery (SSRF)

    The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Affected Systems

  • Unknown•Zimbra Collaboration Suite

    < 8.8.15 | 8.8.15 | 8.8.15:p1 | 8.8.15:p2 | 8.8.15:p3 | 8.8.15:p4 | 8.8.15:p5 | 8.8.15:p6

References (2)