CVE-2024-3705: Unrestricted Upload of File with Dangerous Type vulnerability in OpenGnsys

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-12 · updated 2026-06-17
Weakness: CWE-434

Description

Unrestricted file upload vulnerability in OpenGnsys affecting version 1.1.1d (Espeto). This vulnerability allows an attacker to send a POST request to the endpoint '/opengnsys/images/M_Icons.php' modifying the file extension, due to lack of file extension verification, resulting in a webshell injection.

Affected products

OpenGnsys: 1.1.1d

References

https://opengnsys.es/web/parche-de-seguridad-cve-2024-370x
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-opengnsys
https://opengnsys.es/web/parche-de-seguridad-cve-2024-370x
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-opengnsys

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