An unauthenticated arbitrary file upload vulnerability in ck_upload_handler.php in Feng Office 3.11.13.11 allows remote attackers to upload malicious files (such as .html) to the web-accessible /tmp/ directory.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact total

Affected Vendors & Products

Vendors Products
Fengoffice
  • Feng Office

No data.

No data.

References
Link Providers
https://github.com/firstlax6t/CVE-2026-36669-FengOffice cve-icon cve-icon
https://www.fengoffice.com/ cve-icon
History

Mon, 20 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-434
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 17 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Fengoffice
Fengoffice feng Office
Vendors & Products Fengoffice
Fengoffice feng Office

Fri, 17 Jul 2026 20:00:00 +0000

Type Values Removed Values Added
Description An unauthenticated arbitrary file upload vulnerability in ck_upload_handler.php in Feng Office 3.11.13.11 allows remote attackers to upload malicious files (such as .html) to the web-accessible /tmp/ directory.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-07-17T00:00:00.000Z

Updated: 2026-07-20T18:09:37.039Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36669

cve-icon Vulnrichment

Updated: 2026-07-20T18:09:26.994Z

cve-icon NVD

No data.

cve-icon Redhat

No data.