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CVE-2018-14028

HIGH 7.2 CVSS 3.0
Published
August 10, 2018
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-434
CVSS vector
CVSS: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.

Affected WordPress components

  • WordPress core
    Confirmed match
    Version 4.9.7

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • n/a n/a — Versions not specified
  • wordpress wordpress — Version 4.9.7

References

  • www.securityfocus.com http://www.securityfocus.com/bid/105060 Third Party Advisory, VDB Entry
  • core.trac.wordpress.org https://core.trac.wordpress.org/ticket/44710 Third Party Advisory
  • github.com https://github.com/rastating/wordpress-exploit-framework/pull/52 Third Party Advisory
  • rastating.github.io https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/ Third Party Advisory
  • nvd.nist.gov Official NVD record