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CVE-2019-20043

Published: 27 December 2019

In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

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

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(5.3.2+dfsg1-1)
groovy Not vulnerable
(5.3.2+dfsg1-1)
hirsute Not vulnerable
(5.3.2+dfsg1-1)
impish Not vulnerable
(5.3.2+dfsg1-1)
jammy Not vulnerable
(5.3.2+dfsg1-1)
kinetic Not vulnerable
(5.3.2+dfsg1-1)
lunar Not vulnerable
(5.3.2+dfsg1-1)
mantic Not vulnerable
(5.3.2+dfsg1-1)
trusty Does not exist

upstream
Released (5.3.2+dfsg1-1)
xenial Needs triage

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N