CVE Vulnerability

CVE-2018-14028

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.

6.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.2 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/ Third Party Advisory
https://github.com/rastating/wordpress-exploit-framework/pull/52 Third Party Advisory
https://core.trac.wordpress.org/ticket/44710 Third Party Advisory
http://www.securityfocus.com/bid/105060 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:wordpress:wordpress:4.9.7:*:*:*:*:*:*:*
Information

Published : 2018-08-10 04:29

Updated : 2018-10-10 01:06

NVD link : CVE-2018-14028

Mitre link : CVE-2018-14028

Products Affected
No products.
CWE
CWE-434