CVE-2021-24224

Easy Form Builder <= 1.0 - Authenticated Arbitrary File Upload

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to authenticated users, does not have any security in place to verify uploaded files, allowing low privilege users to upload arbitrary files, leading to RCE.

La acción AJAX EFBP_verify_upload_file del plugin Easy Form Builder WordPress versiones hasta 1.0, disponible para usuarios autenticados, no presenta ninguna seguridad para verificar los archivos cargados, permitiendo a usuarios poco privilegiados cargar archivos arbitrarios, conllevando a una vulnerabilidad de RCE

*Credits: Jin Huang

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

2021-01-14 CVE Reserved
2021-03-26 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-08-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (2)

URL	Tag	Source
https://wpscan.com/vulnerability/ed0c054b-54bf-4df8-9015-c76704c93484	Third Party Advisory

URL	Date	SRC
https://github.com/jinhuang1102/CVE-ID-Reports/blob/e4c33529b20fa70e3a764ff9b1125839fb9900b5/Easy%20Form%20Builder.md	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Easy-form-builder-by-bitware Project Search vendor "Easy-form-builder-by-bitware Project"		Easy-form-builder-by-bitware Search vendor "Easy-form-builder-by-bitware Project" for product "Easy-form-builder-by-bitware"				<= 1.0 Search vendor "Easy-form-builder-by-bitware Project" for product "Easy-form-builder-by-bitware" and version " <= 1.0"		wordpress		Affected