Description
An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. CheckUser TokenManager insecurely uses AES-CTR encryption with a repeated (aka re-used) nonce, allowing an adversary to decrypt.
Remediation
References
Related Vulnerabilities
WordPress 5.0.x Multiple Vulnerabilities (5.0 - 5.0.8)
Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2012-3391)
Apache HTTP Server Out-of-bounds Write Vulnerability (CVE-2021-26691)
WordPress Plugin Nmedia WordPress Member Conversation 'doupload.php' Arbitrary File Upload (1.3)