is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2 allows arbitrary file deletion because it does not properly determine whether a meta key is considered protected.
How to mitigate CVE-2020-28039
Time needed: 5 minutes.
Follow the instructions, as they will assist you in mitigating the WordPress vulnerability that been reported in CVE-2020-28039.
- Install the latest version of WordPress
Navigate to the official WordPress website and download the latest version of WordPress. The latest version contains the CVE-2020-28039 fix.
- Perform a vulnerability assessment
Perform a scan on your WordPress environment(s), and check for vulnerabilities. Verify if CVE-2020-28039 has been mitigated.
- Utilize the references
The CVE-2020-28039 references have been provided for a reason. Utilize these references and make sure that you are correctly informed.