xiaoheiFS Vulnerable to RCE via Unrestricted Plugin Installation (Manifest Manipulation)

published 2026-03-18 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-12700

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

xiaoheiFS is a self-hosted financial and operational system for cloud service businesses. In versions up to and including 0.3.15, the standard plugin system allows admins to upload a ZIP file containing a binary and a `manifest.json`. The server trusts the `binaries` field in the manifest and executes the specified file without any validation of its contents or behavior, leading to Remote Code Execution (RCE). Version 0.4.0 fixes the issue.

Patch / fix

fixed in 1

danvei233 xiaoheifs 0.4.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 7 mo ago (2026-03-18)

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/danvei233/xiaoheiFS/security/advisories/GHSA-4vw4-5wmh-7x4v referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

danvei233 xiaoheiFS

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-434 Unrestricted Upload of File with Dangerous Type

References

github.com /danvei233/xiaoheiFS/security/advisories/GHSA-4vw4-5wmh-7x4v
exploit, vendor-advisory

Sources

CVE List CVE-2026-28673
NVD CVE-2026-28673

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary