---
id: CVE-2026-75339
title: >-
  The storage endpoint /storage/upload of cjbi admin3 v3.0.0 are missing
  permission checks
summary: >-
  The storage endpoint /storage/upload of cjbi admin3 v3.0.0 are missing
  permission checks. /Any logged-in user can upload arbitrary files, and any
  anonymous attacker can download them.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-862
published: '2026-08-28'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75339'
references:
  - url: 'https://github.com/fangtang7/CVE/blob/main/admin3/file.md'
    label: cve@mitre.org
  - url: 'https://github.com/fangtang7/CVE/blob/main/admin3/file.md'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00286
epssPercentile: 0.21387
ingestedAt: '2026-09-09T16:14:05.517Z'
---

## Overview

The storage endpoint /storage/upload of cjbi admin3 v3.0.0 are missing permission checks. /Any logged-in user can upload arbitrary files, and any anonymous attacker can download them.

## Remediation

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