What’s Vulnerable › Vulnerabilities
CVE-2026-23928: Stored XSS vulnerability in the Item history/Plain text widget
- Severity: medium (CVSS 6.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-06 · updated 2026-09-18
- Weakness: CWE-79
Description
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 products
- Zabbix: from 6.0.0 before 6.0.45; from 7.0.0 before 7.0.24; from 7.4.0 before 7.4.8 — fixed in 6.0.45, 7.0.24, 7.4.8
How to fix
Upgrade to a fixed version: Zabbix 6.0.45, 7.0.24, 7.4.8. Check the vendor advisory for mitigations.
References
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