Description
MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2, when a private wiki is configured, provides different error messages for failed login attempts depending on whether the username exists, which allows remote attackers to enumerate account names and conduct brute-force attacks via a series of requests.
Remediation
References
Related Vulnerabilities
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Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2014-0217)
Oracle Database Server CVE-2006-5336 Vulnerability (CVE-2006-5336)