CVE-2026-28674

xiaoheiFS Vulnerable to RCE via Arbitrary Payment Plugin Upload (Automatic Execution)

State: Published
Severity: 7.2 High
Published: Mar 18, 2026
Updated: Mar 18, 2026
Reserved: Mar 2, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
xiaoheiFSdanvei233	< 0.4.0Affected

References

https://github.com/danvei233/xiaoheiFS/security/advisories/GHSA-hcj4-gfvq-qv4p

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