Cross-site scripting in Zabbix - CVE-2026-23928
Published: May 6, 2026
Vulnerability identifier: #VU130253
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-23928
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform unauthorized actions.
The vulnerability exists due to cross-site scripting in the Item history/Plain text widget when rendering monitored host data with HTML display enabled. A remote privileged user can send a malicious JavaScript payload from a controlled monitored host to perform unauthorized actions.
User interaction is required, and exploitation occurs when a user opens a dashboard containing the affected widget.
Affected software
Zabbix
Fedora
zabbix6.0
zabbix7.0
Fedora
zabbix6.0
zabbix7.0
How to mitigate CVE-2026-23928
Install security update from vendor's website.
Zabbix - addressed in versions 6.0.45, 7.0.24, 7.4.8
zabbix6.0 - update to 6.0.46-1.el8
zabbix7.0 - addressed in versions 7.0.26-1.el8, 7.0.26-1.el10_1, 7.0.26-1.el10_2, 7.0.26-1.el10_3
zabbix6.0 - update to 6.0.46-1.el8
zabbix7.0 - addressed in versions 7.0.26-1.el8, 7.0.26-1.el10_1, 7.0.26-1.el10_2, 7.0.26-1.el10_3