Arbitrary file upload in N/a
CVE-2026-88419
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.
Vulnerability class: Unrestricted File Upload
Published .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-88419?
- CVE-2026-88419 is a high-severity vulnerability in N/a, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-09-22.
- How severe is CVE-2026-88419?
- High severity. CVSS v3 base score is 8.8 out of 10.