CVE-2026-28674

Name: CVE-2026-28674
Creator: NVD / NIST
Published: 2026-03-18T01:16:05.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-28674 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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/`. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.34%

26.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Danvei233	Xiaoheifs	< 0.4.0

References

https://github.com/danvei233/xiaoheiFS/security/advisories/GHSA-hcj4-gfvq-qv4pExploit, Vendor Advisory
https://github.com/danvei233/xiaoheiFS/security/advisories/GHSA-hcj4-gfvq-qv4pExploit, Vendor Advisory

Timeline

Published: Mar 18, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-28674?

How severe is CVE-2026-28674?

CVE-2026-28674 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-28674?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-28674?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST