CVE-2026-28673 xiaoheiFS Vulnerable to RCE via Unrestricted Plugin Installation (Manifest Manipulation)
Attackers can achieve remote code execution by uploading a malicious plugin ZIP with a manipulated manifest, as the server executes specified binaries without validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28673?
CVE-2026-28673 is a high-severity code injection vulnerability in danvei233 xiaoheiFS, published on 18 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-28673?
It affects 1 product.
Products include Danvei233 Xiaoheifs.
How do I fix CVE-2026-28673?
No fix has been published for CVE-2026-28673 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-28673 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28673 exists.