Auth bypass in Hydrosystem Control System
CVE-2026-34184
Hydrosystem Control System does not enforce authorization for some directories. This allows an unauthorized attacker to read all files in these directories and even execute some of them. Critically the attacker could run PHP scripts direct…
Vulnerability class: Broken Access Control
EPSS: 0.000 (14.3th percentile) — read the EPSS interpretation.
Affected products
- Hydrosystem Control System — versions 0
Weakness classification (CWE)
References
- cert.pl/posts/2026/04/CVE-2026-4901/ (third-party-advisory)
- www.hydrosystem.poznan.pl/ (product)