CVE-2026-36669

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CVSS 3.1

9.8 critical

EPSS

<1%p45

Published

Jul 17, 2026 (Jul 17, 2026)

Modified

Jul 23, 2026

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.

Weakness: CWE-434
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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