CVE-2026-75339: n/a
Description
CVE-2026-75339 affects cjbi admin3 version 3.0.0, where the storage endpoint /storage/upload lacks proper permission checks. This flaw allows any logged-in user to upload arbitrary files and permits anonymous attackers to download those files. The vulnerability has a high severity with a CVSS score of 8.8, indicating a significant risk to confidentiality, integrity, and availability.
CVSS v3.1
Score 8.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in cjbi admin3 v3.0.0 involves missing permission checks on the /storage/upload endpoint. This security weakness enables any authenticated user to upload arbitrary files without restriction and allows unauthenticated users to download these files. The issue is categorized under CWE-862 (Missing Authorization). No patch or official remediation has been documented as of the published date.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized file uploads by any logged-in user, potentially allowing malicious files to be stored on the system. Additionally, anonymous attackers can download these files, which may lead to data leakage or further exploitation. The vulnerability impacts confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the /storage/upload endpoint through network controls or application-level access restrictions to prevent unauthorized uploads and downloads.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-08-17T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a916b3bacd9273b49cabe0e
Added to database: 08/28/2026, 11:04:27 UTC
Last enriched: 09/08/2026, 09:07:30 UTC
Last updated: 10/13/2026, 18:48:23 UTC
Views: 65
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