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    CVE-2026-36669

    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.

    Published:Jul 17, 2026
    Last Modified:Aug 1, 2026
    EPS:Jul 17, 2026
    EPSS Score:0.00563
    CVSS Score:9.8

    Affected Products

    Vendor
    Fengoffice
    Product
    Feng Office

    Exploits

    https://github.com/firstlax6t/CVE-2026-36669-FengOffice

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2025-5877 (CVSS 2.1) — A vulnerability, which was classified as problematic, has been found in Fengoffice Feng Office 3.2.2.1. Affect…
    CVE-2025-5433 (CVSS 5.3) — A vulnerability was found in Fengoffice Feng Office 3.5.1.5 and classified as critical. Affected by this issue…
    CVE-2024-6039 (CVSS 5.3) — A vulnerability, which was classified as critical, was found in Feng Office 3.11.1.2. Affected is an unknown f…
    CVE-2019-9623 (CVSS 9.8) — Feng Office 3.7.0.5 allows remote attackers to execute arbitrary code via "<!--#exec cmd=" in a .shtml file to…
    CVE-2014-5343 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Feng Office allows remote attackers to inject arbitrary web script…
    CVE-2013-5744 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Feng Office 2.3.2-rc and earlier allows remote attackers to inject…
    CVE-2011-3738 (CVSS 5) — Feng Office 1.7.2 allows remote attackers to obtain sensitive information via a direct request to a .php file,…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High