What’s Vulnerable › Vulnerabilities
CVE-2026-23926: Stored XSS vulnerability in Host navigator widget maintenance tooltip
- 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
An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.
Affected products
- Zabbix: from 7.0.0 before 7.0.24; from 7.4.0 before 7.4.8 — fixed in 7.0.24, 7.4.8
How to fix
Upgrade to a fixed version: Zabbix 7.0.24, 7.4.8. Check the vendor advisory for mitigations.
References
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