CVE-2026-23926CWE-79cross-site-scripting

CVE-2026-23926

Medium · published May 6, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-06T12:16Z
Affected products (2)
ProductVersionsFixed in
zabbix/zabbix≥ 7.0.0, < 7.0.247.0.24
zabbix/zabbix≥ 7.4.0, < 7.4.87.4.8
References (1)
https://support.zabbix.com/browse/ZBX-27758 · [email protected]
EPSS history
Timeline
  • 06 MAY 06:58Z
    Stored XSS vulnerability in Host navigator widget maintenance tooltip
    cvelistv5