Missing Authorization in Hydrosystem Control System

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 directly on the connected database.This issue was fixed in Hydrosystem Control System version 9.8.5

Problem type

CWE-862: Missing Authorization

Affected products

Hydrosystem

Control System

< 9.8.5 - AFFECTED

References

cert.pl

https://cert.pl/posts/2026/04/CVE-2026-4901/

third-party-advisory

hydrosystem.poznan.pl

https://www.hydrosystem.poznan.pl/

product

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-34184

Click to expand

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    "dateReserved": "2026-03-26T09:40:20.576Z",
    "datePublished": "2026-04-09T09:41:08.526Z",
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