app/config/core.php in baserCMS 1.6.15 and earlier does not properly handle installations in shared-hosting environments, which allows remote attackers to hijack sessions by leveraging administrative access to a different domain.
Cross-site scripting (XSS) vulnerability in BaserCMS before 1.6.13.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
BaserCMS before 1.6.12 does not properly restrict additions to the membership of the operators group, which allows remote authenticated users to gain privileges via unspecified vectors.