Description
Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.
INFO
Published Date :
2026-03-24T18:27:52.882Z
Last Modified :
2026-03-26T03:55:29.372Z
Source :
Zabbix
AFFECTED PRODUCTS
The following products are affected by CVE-2026-23920 vulnerability.
| Vendors | Products |
|---|---|
| Zabbix |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23920.
| URL | Resource |
|---|---|
| https://support.zabbix.com/browse/ZBX-27639 |
|
CVSS Vulnerability Scoring System
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability