Zabbix vulnerability

What happened

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.

Affected versions

Zabbix: 7.0.0 through 7.0.21 (git); 7.2.0 through 7.2.14 (git); 7.4.0 through 7.4.5 (git) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.