An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member&f=article&v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.
History

Sat, 26 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Wuzhicms
Wuzhicms wuzhicms
Vendors & Products Wuzhicms
Wuzhicms wuzhicms

Tue, 22 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Title Unrestricted File Upload Allowing Remote Code Execution in WuzhiCMS 5.0.0

Tue, 22 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
Title Unrestricted File Upload Allowing Remote Code Execution in WuzhiCMS 5.0.0

Tue, 22 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-434
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Description An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member&f=article&v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-22T00:00:00.000Z

Updated: 2026-09-22T19:43:01.271Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88419

cve-icon Vulnrichment

Updated: 2026-09-22T19:42:25.397Z

cve-icon NVD

Status : Deferred

Published: 2026-09-22T20:17:11.083

Modified: 2026-09-24T21:25:27.050

Link: CVE-2026-88419

cve-icon Redhat

No data.