VULNERABILITY INTELLIGENCE

CVE-2026-28674

CVSS score7.2 HIGH
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-03-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

xiaoheiFS is a self-hosted financial and operational system for cloud service businesses. In versions up to and including 0.3.15, the `AdminPaymentPluginUpload` endpoint lets admins upload any file to `plugins/payment/`. It only checks a hardcoded password (`qweasd123456`) and ignores file content. A background watcher (`StartWatcher`) then scans this folder every 5 seconds. If it finds a new executable, it runs it immediately, resulting in RCE. Version 4.0.0 fixes the issue.

Weakness classification

  • CWE-434: Unrestricted Upload of File with Dangerous Type
  • CWE-798: Use of Hard-coded Credentials

Primary references