IBM Connections is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

IBM Connections 5.5 and earlier is vulnerable to possible link manipulation attack that could result in the display of inappropriate background images.

IBM Connections 5.5 and earlier is vulnerable to possible host header injection attack that could cause navigation to the attacker's domain.

IBM Connections 5.5 and earlier allows remote attackers to obtain sensitive information by reading stack traces in returned responses.

Cross-site scripting (XSS) vulnerability in IBM Connections 5.0 before CR4 and 5.5 before CR1 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

IBM Connections 4.0 through CR4, 4.5 through CR5, and 5.0 before CR4 allows remote authenticated users to obtain sensitive information by reading a stack trace in a response.

Cross-site request forgery (CSRF) vulnerability in IBM Connections 4.0 through CR4, 4.5 through CR5, and 5.0 before CR4 allows remote authenticated users to hijack the authentication of arbitrary users for requests that modify the Connections generic page.

IBM Connections 4.0 through CR4, 4.5 through CR5, and 5.0 before CR4 allows remote authenticated users to obtain sensitive information by reading an "archaic" e-mail address in a response.

Cross-site request forgery (CSRF) vulnerability in IBM Connections 4.0 through CR4, 4.5 through CR5, and 5.0 before CR4 allows remote authenticated users to hijack the authentication of arbitrary users for requests that modify the set of available applications.

IBM Connections 4.0 through CR4, 4.5 through CR5, and 5.0 before CR4 allows physically proximate attackers to obtain sensitive information by reading cached data on a client device.