SB2021102517 - Arbitrary file upload in Access Demo Importer plugin for WordPress
Published: October 25, 2021
Security Bulletin ID
SB2021102517
Severity
Medium
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-2021-39317)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload in the "plugin_offline_installer_callback" function in the ~/inc/demo-functions.php file. A remote authenticated attacker can upload a malicious file and execute it on the server.
Remediation
Install update from vendor's website.
References
- https://www.wordfence.com/blog/2021/10/high-severity-vulnerability-patched-in-access-demo-importer-plugin/
- https://plugins.trac.wordpress.org/changeset/2602132/access-demo-importer/trunk/inc/demo-functions.php
- https://plugins.trac.wordpress.org/changeset/2592642/access-demo-importer/trunk/inc/demo-functions.php