CVE-2026-55477
Authenticated Arbitrary File Write via Database Import and Xray Log Path Manipulation
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.2EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
25 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
3X-UI is a web control panel for managing Xray-core servers. Prior to 3.3.1, an authenticated administrator can abuse the database import functionality to achieve arbitrary file write on the host by modifying Xray configuration values stored in the database. This can be leveraged to obtain code execution and persistent access as the user running Xray (including root when Xray is running as root). This vulnerability is fixed in 3.3.1.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
MHSanaei · 3x-uiWant to know if your infrastructure is exposed to this?
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