CVE-2018-25439: MetInfo CMS 6.0.0 before 6.1.1 contains a path traversal vulnerability in /include/thumb.php that allows unaut

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HIGH 7.5REMOTE

CVE-2018-25439 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-10-22
Last modified	2026-10-22

Publisher (CNA): VulnCheck

Last updated 2026-10-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-22Published CVE record published
2026-10-22 17:40 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · retext · FIXED · 8.1.0-1.fc46 · FEDORA-2026-0602a84203 · source

sudo dnf upgrade --advisory=FEDORA-2026-0602a84203

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-25439?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2018-25439 being exploited?

CVE-2018-25439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-25439 affect?

CVE-2018-25439 affects affected software. Severity is high (CVSS 7.5). 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 b

How urgent is CVE-2018-25439?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities · Windows vulnerabilities

References

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