CVE-2026-36669: n/a
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.
AI Analysis
Technical Summary
This vulnerability involves an unauthenticated arbitrary file upload in the ck_upload_handler.php component of Feng Office 3.11.13.11. Attackers can remotely upload malicious files to the /tmp/ directory, which is accessible via the web, potentially leading to remote code execution or other severe impacts. The CVSS score of 9.8 reflects the high severity and ease of exploitation without any privileges or user interaction.
Potential Impact
Successful exploitation allows remote attackers to upload and potentially execute malicious files on the affected system, leading to full compromise including confidentiality, integrity, and availability impacts. The vulnerability is exploitable without authentication, increasing the risk significantly.
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 /tmp/ directory and monitor for unauthorized file uploads. Consider disabling or restricting the vulnerable upload handler if possible.
CVE-2026-36669: n/a
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.
CVSS v3.1
Score 9.8critical
Affected software
pkg:github/firstlax6t/CVE-2026-36669-FengOfficeRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an unauthenticated arbitrary file upload in the ck_upload_handler.php component of Feng Office 3.11.13.11. Attackers can remotely upload malicious files to the /tmp/ directory, which is accessible via the web, potentially leading to remote code execution or other severe impacts. The CVSS score of 9.8 reflects the high severity and ease of exploitation without any privileges or user interaction.
Potential Impact
Successful exploitation allows remote attackers to upload and potentially execute malicious files on the affected system, leading to full compromise including confidentiality, integrity, and availability impacts. The vulnerability is exploitable without authentication, increasing the risk significantly.
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 /tmp/ directory and monitor for unauthorized file uploads. Consider disabling or restricting the vulnerable upload handler if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5b5eae2d1edb114c7fb312
Added to database: 07/18/2026, 11:08:30 UTC
Last enriched: 07/25/2026, 22:45:43 UTC
Last updated: 08/28/2026, 22:52:10 UTC
Views: 45
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