CVE-2020-35489

Contact Form 7 <= 5.3.1 - Arbitrary File Upload via Bypass

Severity Score

10.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The contact-form-7 (aka Contact Form 7) plugin before 5.3.2 for WordPress allows Unrestricted File Upload and remote code execution because a filename may contain special characters.

El plugin contact-form-7 (también se conoce como Contact Form 7) versiones anteriores a 5.3.2 para WordPress, permite una Carga de Archivos Sin Restricciones y una ejecución de código remota porque un nombre de archivo puede contener caracteres especiales

The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads in versions up to 5.3.2. This is due to the fact that the plugin allows filenames to contain special characters which may make extension filter evasion possible on certain configurations. Our team was not able to reproduce this issue which leads us to believe there is a high attack complexity or special configuration requirement.

*Credits: Jinson Varghese Behanan

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2020-12-17 CVE Published
2020-12-25 First Exploit
2024-08-04 CVE Updated
2024-10-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (8)

URL	Tag	Source
https://wordpress.org/plugins/contact-form-7/#developers	Release Notes
https://wpscan.com/vulnerability/10508	Third Party Advisory
https://www.getastra.com/blog/911/plugin-exploit/contact-form-7-unrestricted-file-upload	Third Party Advisory
https://www.jinsonvarghese.com/unrestricted-file-upload-in-contact-form-7	Third Party Advisory

URL	Date	SRC
https://github.com/dn9uy3n/Check-WP-CVE-2020-35489	2020-12-25
https://github.com/Cappricio-Securities/CVE-2020-35489	2024-06-21
https://github.com/X0UCYB3R/Check-WP-CVE-2020-35489	2020-12-25

URL	Date	SRC

URL	Date	SRC
https://contactform7.com/2020/12/17/contact-form-7-532	2020-12-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rocklobster Search vendor "Rocklobster"		Contact Form 7 Search vendor "Rocklobster" for product "Contact Form 7"				< 5.3.2 Search vendor "Rocklobster" for product "Contact Form 7" and version " < 5.3.2"		wordpress		Affected