Unrestricted File Upload Vulnerability in GouGuOA by GouGuOA
CVE-2026-116113

5.3MEDIUM

Key Information:

Vendor: GouGuOA
Status: Gouguoa
Vendor: CVE Published:; 26 October 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-116113?

A significant security flaw has emerged in GouGuOA versions up to 6.1.2, specifically within the 'chunkUpload' function located in app/disk/controller/Api.php. This vulnerability arises from inadequate validation of the 'file_extension' parameter, allowing for unrestricted file uploads. Such a weakness can be exploited remotely, enabling attackers to upload malicious files, which poses a severe risk to the system’s integrity. It is noteworthy that the disclosure of this vulnerability has been made public, and although the vendor was approached regarding the issue, no response has been recorded.

Affected Version(s)

GouGuOA 6.1.0

GouGuOA 6.1.1

GouGuOA 6.1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-116113 - Proof of Concept