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CVE-2018-14028

Published: 10 August 2018

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.

Priority

Medium

Cvss 3 Severity Score

7.2

Score breakdown

Status

Package Release Status
wordpress
Launchpad, Ubuntu, Debian
bionic Needs triage

cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

groovy Ignored
(end of life)
xenial Needs triage

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
mantic Needs triage

Severity score breakdown

Parameter Value
Base score 7.2
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H