CVE-2019-8942

WordPress Core < 5.0.1 - Remote Code Execution

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

WordPress before 4.9.9 and 5.x before 5.0.1 allows remote code execution because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata. Exploitation can leverage CVE-2019-8943.

WordPress, en versiones anteriores a la 4.99 y en las 5.x anteriores a la 5.0.1, permite la ejecución remota de código debido a que una entrada "Post Meta" _wp_attached_file puede modificarse a una cadena arbitraria, como uno que termina en una subcadena ".jpg?file.php". Un atacante con privilegios de autor puede ejecutar código arbitrario subiendo una imagen manipulada que contiene código PHP en los metadatos Exif. Su explotación exitosa puede aprovechar el CVE-2019-8943.

*Credits: Simon Scannell

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-19 CVE Reserved
2019-02-19 CVE Published
2019-05-02 First Exploit
2024-08-04 CVE Updated
2024-09-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/107088	Third Party Advisory
https://wpvulndb.com/vulnerabilities/9222	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/46662	2024-08-04
https://www.exploit-db.com/exploits/46511	2024-08-04
https://github.com/synacktiv/CVE-2019-8942	2019-05-02
https://github.com/tuannq2299/CVE-2019-8942	2022-05-31
http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-Upload.html	2024-08-04
http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rce	2024-08-04
https://blog.ripstech.com/2019/wordpress-image-remote-code-execution	2024-08-04
https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.debian.org/security/2019/dsa-4401	2021-07-21

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"				< 4.9.9 Search vendor "Wordpress" for product "Wordpress" and version " < 4.9.9"		-		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		-		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		beta1		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		beta2		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		beta3		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		beta4		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		beta5		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		rc1		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		rc2		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				5.0 Search vendor "Wordpress" for product "Wordpress" and version "5.0"		rc3		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