CVE-2026-28286

EIP tracks 1 public exploit for CVE-2026-28286. PoCs published by Rushi9.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-28286, an arbitrary file write vulnerability in ZimaOS. The exploit targets the `/v2_1/files/file` endpoint, which lacks path validation, allowing attackers to write files outside the intended directory.

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.5.2-beta3, the application enforces restrictions in the frontend/UI to prevent users from creating files or folders in internal OS paths. However, when interacting directly with the API, the restrictions are bypass-able. By sending a crafted request targeting paths like /etc, /usr, or other sensitive system directories, the API successfully creates files or directories in locations where normal users should have no write access. This indicates that the API does not properly validate the target path, allowing unauthorized operations on critical system directories. No known patch is publicly available.