CVE-2018-20127

Name: CVE-2018-20127
Creator: NVD / NIST
Published: 2018-12-13T08:29:00.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.39%

Last modified Jun 17, 2026

CVE-2018-20127 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in zzzphp cms 1.5.8. del_file in /admin/save.php allows remote attackers to delete arbitrary files via a mixed-case extension and an extra '.' character, because (for example) "php" is blocked but path=F:/1.phP. EPSS estimates a 1.39% chance of exploitation in the next 30 days.

Description

An issue was discovered in zzzphp cms 1.5.8. del_file in /admin/save.php allows remote attackers to delete arbitrary files via a mixed-case extension and an extra '.' character, because (for example) "php" is blocked but path=F:/1.phP. succeeds.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.39%

68.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Zzzcms	Zzzphp	1.5.8

References

http://www.iwantacve.cn/index.php/archives/89/Exploit, Third Party Advisory
http://www.iwantacve.cn/index.php/archives/89/Exploit, Third Party Advisory

Timeline

Published: Dec 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20127?

How severe is CVE-2018-20127?

CVE-2018-20127 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.39% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20127?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20127?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST