VULNERABILITY INTELLIGENCE

CVE-2018-14028

CVSS score7.2 HIGH
EPSS probability15.17%
CISA KEVNot currently listed
Published2018-08-10
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-434: Unrestricted Upload of File with Dangerous Type

Primary references