CVE-2019-20043

WordPress Core < 5.3.1 - Authorization Bypass

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En wp-includes / rest-api / endpoints / class-wp-rest-posts-controller.php en WordPress 3.7 a 5.3.0, los usuarios autenticados que no tienen los derechos para publicar una publicación pueden marcar publicaciones como fijas o antiadherente a través de la API REST. Por ejemplo, el rol de contribuyente no tiene tales derechos, pero esto les permitió evitarlo. Esto se ha solucionado en WordPress 5.3.1, junto con todas las versiones anteriores de WordPress desde 3.7 hasta la versión 5.3 a través de una versión menor.

*Credits: Daniel Bachhuber

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-01 CVE Published
2019-12-27 CVE Reserved
2024-04-21 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-269: Improper Privilege Management
CWE-285: Improper Authorization

CAPEC

References (8)

URL	Tag	Source
https://github.com/WordPress/wordpress-develop/commit/1d1d5be7aa94608c04516cac4238e8c22b93c1d9	Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-g7rg-hchx-c2gw	Third Party Advisory
https://seclists.org/bugtraq/2020/Jan/8	Mailing List
https://wpvulndb.com/vulnerabilities/9973	Release Notes

URL	Date	SRC

URL	Date	SRC
https://core.trac.wordpress.org/changeset/46893/trunk	2023-01-20

URL	Date	SRC
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release	2023-01-20
https://www.debian.org/security/2020/dsa-4599	2023-01-20
https://www.debian.org/security/2020/dsa-4677	2023-01-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				>= 3.7 < 5.3.1 Search vendor "Wordpress" for product "Wordpress" and version " >= 3.7 < 5.3.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected