Stored cross-site scripting in Zabbix - CVE-2020-15803
Published: July 17, 2020 / Updated: June 17, 2021
Vulnerability identifier: #VU47356
CSH Severity: Medium
CVSS v4: 5.1 [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]
CVE-ID: CVE-2020-15803
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
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 the URL Widget. A remote attacker can permanently 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.
Affected software
Zabbix
SUSE Linux
Opensuse
Fedora
zabbix
SUSE Linux
Opensuse
Fedora
zabbix
How to mitigate CVE-2020-15803
Install update from vendor's website.
Zabbix - addressed in versions 4.0.22 rc1, 4.4.10 rc1, 5.0.2 rc1
zabbix - addressed in versions 4.0.22-1.fc31, 4.0.22-1.fc32
zabbix - addressed in versions 4.0.22-1.fc31, 4.0.22-1.fc32
Links to Public Exploits and PoC-codes
External References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00007.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2ZHHIUYIVA5GZYLKW6A5G6HRELPOBZFE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TIRIMOXH6GSBAANDCB3ANLJK4CRLWRXT/
- https://support.zabbix.com/browse/ZBX-18057