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.

CVSS v3.0 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3.0 : HIGH

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

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

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

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

Information

Published : 2018-08-10 09:29

Updated : 2018-10-10 06:06

NVD link : CVE-2018-14028

Mitre link : CVE-2018-14028

JSON object : View

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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Products Affected

wordpress

wordpress

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