What is GHSA-6jhf-4357-9q99?

GHSA-6jhf-4357-9q99 is a security advisory published by GitHub Security Advisories with High severity. ApiAdmin v5.0 and before is vulnerable to Directory Traversal. The admin file-upload endpoint...

Which CVE IDs does GHSA-6jhf-4357-9q99 cover?

GHSA-6jhf-4357-9q99 covers the following CVE IDs: CVE-2026-88396. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6jhf-4357-9q99?

GHSA-6jhf-4357-9q99 has a CVSS v3 base score of 7.2, published by GitHub Security Advisories.

GHSA-6jhf-4357-9q99HighCVSS 7.2

ApiAdmin v5.0 and before is vulnerable to Directory Traversal. The admin file-upload endpoint...

Vendor

GitHub Security Advisories

Published

October 5, 2026

Last Modified

October 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-88396 →

📋 Description

ApiAdmin v5.0 and before is vulnerable to Directory Traversal. The admin file-upload endpoint POST /admin/Index/upload in ApiAdmin takes the uploaded file's extension verbatim there is no whitelist, blacklist or content check and move_uploaded_file() drops the file into the web-accessible directory public/upload/Ymd/. Any logged-in admin user can upload a .php file and reach it directly over HTTP, achieving remote code execution on the server.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-88396
https://github.com/fangtang7/CVE/blob/main/ApiAdmin/rce.md
https://github.com/advisories/GHSA-6jhf-4357-9q99