SB2020121743 - Arbitrary file upload in Contact Form 7 for WordPress
Published: December 17, 2020 Updated: November 4, 2024
Security Bulletin ID
SB2020121743
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Arbitrary file upload (CVE-ID: CVE-2020-35489)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.
Remediation
Install update from vendor's website.
References
- https://contactform7.com/2020/12/17/contact-form-7-532/
- https://wordpress.org/plugins/contact-form-7/#developers
- https://wpscan.com/vulnerability/10508
- https://www.getastra.com/blog/911/plugin-exploit/contact-form-7-unrestricted-file-upload/
- https://www.jinsonvarghese.com/unrestricted-file-upload-in-contact-form-7/