EUVD-2026-17747CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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4Description
A vulnerability has been found in gougucms 4.08.18. This affects the function reg_submit of the file gougucms-master\app\home\controller\Login.php of the component User Registration Handler. Such manipulation of the argument level leads to dynamically-determined object attributes. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Analysis
Authenticated remote code execution via mass assignment in GougoCMS 4.08.18 User Registration Handler allows attackers with valid credentials to manipulate the 'level' parameter during registration, exploiting dynamically-determined object attributes to escalate privileges or modify sensitive user properties. The vulnerability affects the reg_submit function in Login.php and has publicly available exploit code; however, the vendor has not responded to early disclosure notification.
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