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CVE-2018-14028

7.2 · HIGH

In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files.

Published Aug 10, 2018CWE-434EPSS 15.17%

Overview

CVE-2018-14028 is a high-severity vulnerability. It was published on August 10, 2018 and has a CVSS 3.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/105060Refcore.trac.wordpress.org/ticket/44710GitHubgithub.com/rastating/wordpress-exploit-framework/pull/52Refrastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/Refwww.securityfocus.com/bid/105060Refcore.trac.wordpress.org/ticket/44710GitHubgithub.com/rastating/wordpress-exploit-framework/pull/52Refrastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-14028?

CVE-2018-14028 is a high-severity vulnerability. It was published on August 10, 2018 and has a CVSS 3.0 base score of 7.2 (HIGH).

How severe is CVE-2018-14028?

This vulnerability has a CVSS 3.0 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-14028?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-14028?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-14028 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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