Apache CloudStack 4.0.0 before 4.0.2 and Citrix CloudPlatform (formerly Citrix CloudStack) 3.0.x before 3.0.6 Patch C uses a hash of a predictable sequence, which makes it easier for remote attackers to guess the console access URL via a brute force attack.

Apache CloudStack 4.0.0 before 4.0.2 and Citrix CloudPlatform (formerly Citrix CloudStack) 3.0.x before 3.0.6 Patch C allows remote attackers to bypass the console proxy authentication by leveraging knowledge of the source code.

The virtual router in Apache CloudStack before 4.2.1 does not preserve the source restrictions in firewall rules after being restarted, which allows remote attackers to bypass intended restrictions via a request.

The (1) ListNetworkACL and (2) listNetworkACLLists APIs in Apache CloudStack before 4.2.1 allow remote authenticated users to list network ACLS for other users via a crafted request.

Multiple cross-site scripting (XSS) vulnerabilities in Apache CloudStack before 4.1.1 allow remote attackers to inject arbitrary web script or HTML via the (1) Physical network name to the Zone wizard; (2) New network name, (3) instance name, or (4) group to the Instance wizard; (5) unspecified "multi-edit fields;" and (6) unspecified "list view" edit fields related to global settings.

Apache CloudStack 4.0.0-incubating and Citrix CloudPlatform (formerly Citrix CloudStack) before 3.0.6 stores sensitive information in the log4j.conf log file, which allows local users to obtain (1) the SSH private key as recorded by the createSSHKeyPair API, (2) the password of an added host as recorded by the AddHost API, or the password of an added VM as recorded by the (3) DeployVM or (4) ResetPasswordForVM API.