CVE-2026-30809: OS Command Injection in WebServerModuleDebug via Blacklist Bypass leads to Remote Code Execution

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-13 · updated 2026-06-17
Weakness: CWE-78

Description

Improper Neutralization of Special Elements used in an OS Command vulnerability allows OS Command Injection via WebServerModuleDebug. This issue affects Pandora FMS: from 777 through 800

Affected products

Pandora FMS: from 777 before 800.1 — fixed in 800.1

How to fix

Upgrade to a fixed version: Pandora FMS 800.1. Check the vendor advisory for mitigations.

References

https://pandorafms.com/en/security/common-vulnerabilities-and-exposures/

Get alerted when CVE-2026-30809 or the next vulnerability affects your stack