Server-Side Request Forgery (SSRF) in Zimbra Collaboration - CVE-2020-7796
Published: March 14, 2025
Vulnerability identifier: #VU105734
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-7796
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in WebEx zimlet. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
Affected software
Zimbra Collaboration
How to mitigate CVE-2020-7796
Install updates from vendor's website.
Zimbra Collaboration - update to 8.8.15 Patch 7