The Ansible edxapp role in the Configuration Repo in edX allows remote websites to spoof edX accounts by leveraging use of the string literal "False" instead of a boolean False for the CORS_ORIGIN_ALLOW_ALL setting. Note: this vulnerability was fixed on 2015-03-06, but the version number was not changed.
Open edX edx-platform before 2015-08-25 requires use of the database for storage of SAML SSO secrets, which makes it easier for context-dependent attackers to obtain sensitive information by leveraging access to a database backup.