Xiaoheifs · Xiaoheifs · CVE-2026-28674
**Name of the Vulnerable Software and Affected Versions**
xiaoheiFS versions prior to 4.0.0
**Description**
xiaoheiFS is a self-hosted financial and operational system for cloud service businesses. Versions up to and including 0.3.15 allow administrators to upload any file to the `plugins/payment/` directory via the `AdminPaymentPluginUpload` endpoint. The system only verifies a hardcoded password (`qweasd123456`) and does not inspect the file content. A background process, `StartWatcher`, scans this directory every 5 seconds and immediately executes any new executable files found, leading to Remote Code Execution (RCE).
**Recommendations**
Versions prior to 4.0.0 should be updated to version 4.0.0 or later.