#VU94496 Stored cross-site scripting in Zabbix - CVE-2023-32721

Vulnerability identifier: #VU94496

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-32721

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zabbix
Server applications / Remote management servers, RDP, SSH

Vendor: Zabbix

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Maps element. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zabbix: 4.0.0 rc1 - 4.0.47, 5.0.0 rc1 - 5.0.36, 6.0.0 rc1 - 6.0.20, 6.4.0 rc1 - 6.4.5, 7.0.0 alpha1 - 7.0.0 alpha3

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External links
https://support.zabbix.com/browse/ZBX-23389
https://lists.debian.org/debian-lts-announce/2024/01/msg00012.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.