What’s Vulnerable › Vulnerabilities

CVE-2026-36669

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-17 · updated 2026-10-24
• Weakness: CWE-434

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

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

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