Vulnerability identifier: #VU27392
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-1022
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Zulip Server
Web applications /
Other software
Vendor: Zulip
Description
The vulnerability allows a remote attacker to modify certain properties on the affected system.
The vulnerability exist due to Reverse Tabnabbing in the Markdown functionality. A remote attacker can modify the location property to automatically redirect the user to a malicious site.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Zulip Server: 1.1.5 - 2.1.2
External links
http://blog.zulip.org/2020/04/01/zulip-server-2-1-3-security-release/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.