CVE-2026-23928 — Stored XSS vulnerability in the Item history/Plain text widget
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 per…
Published: 2026-05-06 · CVSS: 7.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7