#VU52314 Improper access control in Zulip Server - CVE-2021-30487
Published: April 19, 2021
Vulnerability identifier: #VU52314
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-30487
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Zulip Server
Zulip Server
Software vendor:
Zulip
Zulip
Description
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the topic moving API. A remote administrator can move messages to streams in other organizations hosted by the same Zulip installation.
Remediation
Install updates from vendor's website.