CVE-2026-23928

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ZabbixZabbix6.0.0 <= 6.0.44affected
ZabbixZabbix7.0.0 <= 7.0.23affected
ZabbixZabbix7.4.0 <= 7.4.7affected

Weaknesses

  • CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Workarounds

Do not use HTML display in Item history/Plain text widget or disable this widget entirely in Administration -> General -> Modules (Zabbix 7.0+).

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References