Is CVE-2018-20062 actively exploited?

CVE-2018-20062 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2018-20062?

CVE-2018-20062 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-20062?

Patch guidance is available from 5none security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-20062.

Fix CVE-2018-20062 - CRITICAL 5none nonecms

Description

An issue was discovered in NoneCms V1.3. thinkphp/library/think/App.php allows remote attackers to execute arbitrary PHP code via crafted use of the filter parameter, as demonstrated by the s=index/\think\Request/input&filter=phpinfo&data=1 query string.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: 5NONE
Published: 12/11/2018
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2018-20062

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary