What is CVE-2026-28673?

CVE-2026-28673 is a high-severity vulnerability in Danvei233 Xiaoheifs, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-18.

How severe is CVE-2026-28673?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Danvei233 Xiaoheifs

CVE-2026-28673

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.006 (44.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Danvei233 Xiaoheifs — versions < 0.4.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28673?: CVE-2026-28673 is a high-severity vulnerability in Danvei233 Xiaoheifs, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-18.
How severe is CVE-2026-28673?: High severity. CVSS v3 base score is 7.2 out of 10.