SilverStripe 2.3.x before 2.3.12 and 2.4.x before 2.4.6 allows remote authenticated users with the EDIT_PERMISSIONS permission to gain administrator privileges via a TreeMultiselectField that includes admin groups when adding a user to the selected groups.
code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow remote attackers to execute arbitrary code via a crafted cookie in a user comment submission, which is not properly handled when it is deserialized.
The Security/changepassword URL action in SilverStripe 2.3.x before 2.3.10 and 2.4.x before 2.4.4 passes a token as a GET parameter while changing a password through email, which allows remote attackers to obtain sensitive data and hijack the session via the HTTP referer logs on a server, aka "HTTP referer leakage."
SilverStripe 2.3.x before 2.3.10 and 2.4.x before 2.4.4 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism and hijack the authentication of administrators via vectors related to "form action requests" using a controller.
Multiple cross-site request forgery (CSRF) vulnerabilities in SilverStripe 2.3.x before 2.3.9 and 2.4.x before 2.4.3 allow remote attackers to hijack the authentication of administrators via destructive controller actions, a different vulnerability than CVE-2010-5087.
The setName function in filesystem/File.php in SilverStripe 2.3.x before 2.3.8 and 2.4.x before 2.4.1 allows remote authenticated users with CMS author privileges to execute arbitrary PHP code by changing the extension of an uploaded file.
The Add Member dialog in the Security admin page in SilverStripe 2.4.0 saves user passwords in plaintext, which allows local users to obtain sensitive information by reading a database.
SilverStripe 2.3.x before 2.3.8 and 2.4.x before 2.4.1, when running on servers with certain configurations, allows remote attackers to obtain sensitive information via a direct request to PHP files in the (1) sapphire, (2) cms, or (3) mysite folders, which reveals the installation path in an error message.