---
title: "CVE-2018-25439: MetInfo CMS - Path Traversal"
description: "MetInfo CMS < 6.1.1 contains a path traversal caused by improper filtering of the dir parameter in /include/thumb.php, letting unauthenticated attackers read arbitrary files, exploit requires crafted requests with backslash sequences."
url: https://panop.io/threat-heartbeat/CVE-2018-25439/
---

# CVE-2018-25439 MetInfo CMS - Path Traversal

MetInfo CMS < 6.1.1 contains a path traversal caused by improper filtering of the dir parameter in /include/thumb.php, letting unauthenticated attackers read arbitrary files, exploit requires crafted requests with backslash sequences.

CVSS base score 7.5 /10

High

CISA KEV

Exploited in the wild

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2018-25439)

## Details

Type

Path Traversal

Impact

File System Read, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published

22 October 2026

Updated

23 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to version 6.1.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2018-25439](https://nvd.nist.gov/vuln/detail/CVE-2018-25439)
- [https://www.metinfo.cn/](https://www.metinfo.cn/)
- [https://www.vulncheck.com/advisories/metinfo-cms-6.1.1-unauthenticated-path-traversal-via-thumb-php-dir-parameter](https://www.vulncheck.com/advisories/metinfo-cms-6.1.1-unauthenticated-path-traversal-via-thumb-php-dir-parameter)
- [https://www.cve.org/CVERecord?id=CVE-2018-25439](https://www.cve.org/CVERecord?id=CVE-2018-25439)
- [https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/metinfo-lfi.yaml](https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/metinfo-lfi.yaml)
- [https://web.archive.org/web/20190916061234/https://paper.seebug.org/676/](https://web.archive.org/web/20190916061234/https://paper.seebug.org/676/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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