CVE-2021-3120: Malicious File Upload
An arbitrary file upload vulnerability in the YITH WooCommerce Gift Cards Premium plugin before 3.3.1 for WordPress allows remote attackers to achieve remote code execution on the operating system in the security context of the web server. In order to exploit this vulnerability, an attacker must be able to place a valid Gift Card product into the shopping cart. An uploaded file is placed at a predetermined path on the web server with a user-specified filename and extension. This occurs because the ywgc-upload-picture parameter can have a .php value even though the intention was to only allow uploads of Gift Card images.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-3120?
The severity of CVE-2021-3120 is critical with a CVSS score of 9.8.
How does CVE-2021-3120 impact the YITH WooCommerce Gift Cards Premium plugin?
CVE-2021-3120 allows remote attackers to achieve remote code execution in the security context of the web server.
What software versions are affected by CVE-2021-3120?
The YITH WooCommerce Gift Cards Premium plugin versions up to and excluding 3.3.1 are affected by CVE-2021-3120.
How can an attacker exploit CVE-2021-3120?
To exploit CVE-2021-3120, an attacker must be able to upload arbitrary files to the vulnerable system.
Is there a fix available for CVE-2021-3120?
Yes, updating the YITH WooCommerce Gift Cards Premium plugin to version 3.3.1 or later will fix CVE-2021-3120.