The Collaboration Server in IBM InfoSphere Master Data Management Server for Product Information Management 9.x through 9.1 and InfoSphere Master Data Management - Collaborative Edition 10.x through 10.1, 11.0 before FP7, and 11.3 and 11.4 before 11.4 FP1 allows remote authenticated users to modify the administrator's credentials and consequently gain privileges via unspecified vectors.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.