---
id: CVE-2016-20104
title: EyeLock nano NXT 3.05.1193 Path Traversal via logdownload.php
summary: >-
  EyeLock nano NXT 3.05.1193, 3.04.1108, 3.03.944, and 3.01.646 contain a path
  traversal vulnerability that allows unauthenticated attackers to read
  arbitrary files via the 'path' parameter. Attackers can send GET requests to
  /scripts/logd…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-22
vendor: EyeLock
product: nano NXT
affected:
  - nano_nxt 3.05.1193
  - nano_nxt 3.04.1108
  - nano_nxt 3.03.944
  - nano_nxt 3.01.646
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T20:31:29.589Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2016-20104'
references:
  - url: 'https://www.zeroscience.mk/advisories/ZSL-2016-5356.html'
    label: Zero Science Lab Advisory (ZSL-2016-5356)
  - url: 'https://www.exploit-db.com/exploits/40227'
    label: EDB-40227
  - url: 'https://packetstorm.news/files/id/138274/'
    label: Packet Storm 138274
  - url: >-
      https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/eyelock-nano-lfd.yaml
    label: Nuclei Template
  - url: >-
      https://www.vulncheck.com/advisories/eyelock-nano-nxt-3.05.1193-path-traversal-via-logdownload-php
    label: >-
      VulnCheck Advisory: EyeLock nano NXT 3.05.1193 Path Traversal via
      logdownload.php
tags:
  - cve.org
ingestedAt: '2026-10-20T21:19:21.263Z'
---

## Overview

EyeLock nano NXT 3.05.1193, 3.04.1108, 3.03.944, and 3.01.646 contain a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files via the 'path' parameter. Attackers can send GET requests to /scripts/logdownload.php with traversal sequences like ../../etc/passwd, which readfile() returns unvalidated, disclosing local system files. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.

## Affected

- `nano_nxt 3.05.1193`
- `nano_nxt 3.04.1108`
- `nano_nxt 3.03.944`
- `nano_nxt 3.01.646`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.