National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-14028 Detail

Current 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.

Source:  MITRE
Description Last Modified:  08/10/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.2


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

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

Technical Details

Vulnerability Type (View All)

  • Unrestricted Upload of File with Dangerous Type (CWE-434)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:wordpress:wordpress:4.9.7:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-14028
NVD Published Date:
08/10/2018
NVD Last Modified:
10/10/2018