Description
In WordPress before 4.9.9 and 5.x before 5.0.1, contributors could conduct PHP object injection attacks via crafted metadata in a wp.getMediaItem XMLRPC call. This is caused by mishandling of serialized data at phar:// URLs in the wp_get_attachment_thumb_file function in wp-includes/post.php.
Remediation
References
Related Vulnerabilities
Artifactory Improper Input Validation Vulnerability (CVE-2019-19937)
Joomla Deserialization of Untrusted Data Vulnerability (CVE-2019-11831)
Drupal Core Security Bypass (8.0.0 - 9.2.21)
WordPress Plugin Anti-Malware Security and Brute-Force Firewall Cross-Site Scripting (4.15.42)
WordPress Plugin Ultimate Addons for Beaver Builder Cross-Site Scripting (1.24.3)