What’s Vulnerable › Vulnerabilities

CVE-2018-25439: MetInfo CMS < 6.1.1 Unauthenticated Path Traversal via thumb.php dir Parameter

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-22 · updated 2026-10-29
• Weakness: CWE-22

Description

MetInfo CMS 6.0.0 before 6.1.1 contains a path traversal vulnerability in /include/thumb.php that allows unauthenticated attackers to read arbitrary files via the dir parameter. Attackers can send crafted requests with backslash sequences bypassing the str_replace filter to read files like config_db.php on Windows. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.

Affected products

• MetInfo CMS: from 6.0.0 before 6.1.1 — fixed in 6.1.1

How to fix

Upgrade to a fixed version: MetInfo CMS 6.1.1. Check the vendor advisory for mitigations.

References

• 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://www.metinfo.cn/
• https://www.vulncheck.com/advisories/metinfo-cms-6.1.1-unauthenticated-path-traversal-via-thumb-php-dir-parameter

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