CVE-2026-23928 HIGH

CVE-2026-23928: Stored XSS vulnerability in the Item history/Plain text widget

Vendor Zabbix
Product Zabbix
Weakness CWE-79 · XSS
Published May 6, 2026
Last update May 6, 2026

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.

Key dates

02Disclosure timeline

May 6, 2026 CVE published
May 6, 2026 Record updated