Improper Neutralization of Special Elements in Output Used by a Downstream Component in Zulip Server - CVE-2020-15070
Published: August 21, 2020 / Updated: August 26, 2020
Vulnerability identifier: #VU46084
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-15070
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Zulip
Affected software:
Zulip Server
Zulip Server
Detailed vulnerability description
The vulnerability allows a remote authenticated user to execute arbitrary code.
Zulip Server 2.x before 2.1.7 allows eval injection if a privileged attacker were able to write directly to the postgres database, and chose to write a crafted custom profile field value.
How to mitigate CVE-2020-15070
Install update from vendor's website.