Vulnerability details
CVE-2026-23926
Zabbix Zabbix
Stored XSS vulnerability in Host navigator widget maintenance tooltip
CVSS 4.0
7.3High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 4.0 | CVEProject cvelistV5 (CNA) (Zabbix) | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Zabbix | Zabbix | 7.0.0 ≤ v ≤ 7.0.23 | CVEProject cvelistV5 (CNA) |
| Zabbix | Zabbix | 7.4.0 ≤ v ≤ 7.4.7 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-05-06
- Last updated
- 2026-05-07
- State
- Published
- Assigner (CNA)
- Zabbix
Exploit prediction (EPSS)
0.26%
Probability of exploitation in 30 days
18.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')