Skip to content
Fencer Vulns
high 7.2

CVE-2026-55477 json

Authenticated Arbitrary File Write via Database Import and Xray Log Path Manipulation

published 2026-06-25 4 mo ago modified 2026-10-25 14 d ago also GHSA-jm48-m3rr-9hgg , GO-2026-6284 , EUVD-2026-39432

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 49%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/mhsanaei/3x-ui/v3 3.3.1
  • govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1

suse advisories SUSE-SU-2026:23625-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1

opensuse advisories openSUSE-SU-2026:21761-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/MHSanaei/3x-ui/security/advisories/GHSA-jm48-m3rr-9hgg 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
GitHub 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/mhsanaei/3x-ui/v3
<3.3.1
3.3.1
go github.com/mhsanaei/3x-ui/v2
<=2.9.4
all versions
 no fix listed
go github.com/mhsanaei/3x-ui
all versions
 no fix listed

Affected products

  • MHSanaei 3x-ui

Classification

Weakness
  • CWE-73 External Control of File Name or Path
  • CWE-20 Improper Input Validation

References

Sources

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.