---
id: CVE-2026-116113
title: GouGuOA Api.php chunkUpload unrestricted upload
summary: >-
  A security flaw has been discovered in GouGuOA up to 6.1.2. The impacted
  element is the function chunkUpload of the file app/disk/controller/Api.php.
  The manipulation of the argument file_extension results in unrestricted
  upload. It is p…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-434
  - CWE-284
product: GouGuOA
affected:
  - GouGuOA 6.1.0
  - GouGuOA 6.1.1
  - GouGuOA 6.1.2
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T03:15:16.452Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116113'
references:
  - url: 'https://vuldb.com/vuln/426181'
    label: VDB-426181 | GouGuOA Api.php chunkUpload unrestricted upload
  - url: 'https://vuldb.com/vuln/426181/cti'
    label: 'VDB-426181 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-116113'
    label: CVE-2026-116113 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1003776'
    label: >-
      Submit #1003776 | gouguoa 6.1.2 Remote Code Execution via Unrestricted
      File Extension Upload
  - url: >-
      https://github.com/Gum29/rrrreeeeeeee-readme/blob/main/images/img/GouguOA-RCE-Standard-Vuln-Report-EN.md
tags:
  - cve.org
ingestedAt: '2026-10-26T04:17:21.301Z'
---

## Overview

A security flaw has been discovered in GouGuOA up to 6.1.2. The impacted element is the function chunkUpload of the file app/disk/controller/Api.php. The manipulation of the argument file_extension results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `GouGuOA 6.1.0`
- `GouGuOA 6.1.1`
- `GouGuOA 6.1.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.