Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It incorrectly executed certain rules related to blocking accounts after account creation. Such rules would allow for user accounts to be created while blocking only the IP address used to create an account (and not the user account itself). Such rules could also be used by a nefarious, unprivileged user to catalog and enumerate any number of IP addresses related to these account creations.
Remediation
References
Related Vulnerabilities
WordPress 5.3.x Multiple Vulnerabilities (5.3 - 5.3.16)
WordPress Plugin open-flash-chart-core Remote Code Execution (0.4)
WordPress 4.1.x Directory Traversal (4.1 - 4.1.40)
WordPress Plugin Database for Contact Form 7, WPforms, Elementor forms Cross-Site Scripting (1.3.3)
WordPress Plugin WordPress Slider Block Gutenslider Cross-Site Scripting (5.1.5)