The registration view (/user/register) in eZ Publish 3.5.6 and earlier, and possibly other versions before 3.9.5, 3.10.1, and 4.0.1, allows remote attackers to gain privileges as other users via modified ContentObjectAttribute_data_user_login_30, ContentObjectAttribute_data_user_password_30, and other parameters.

Cross-site scripting (XSS) vulnerability in eZ publish 3.7.3 and earlier allows remote attackers to inject arbitrary web script or HTML via the RefererURL parameter.

eZ publish 3.5 through 3.7 before 20050830 does not use a folder's read permissions to restrict notifications, which allows remote authenticated users to obtain sensitive information about changes to content in arbitrary folders.

The admin interface in eZ publish 3.5 before 3.5.7, 3.6 before 3.6.5, 3.7 before 3.7.3, and 3.8 before 20051110 does not properly handle authorization errors, which allows remote attackers to obtain sensitive information and see the admin pagelayout and associated templates via a request with (1) "anything after the url" or (2) a "wrong url".

eZ publish 3.5 before 3.5.7, 3.6 before 3.6.5, 3.7 before 3.7.3, and 3.8 before 20051128 allows remote authenticated users to cause a denial of service (Apache httpd segmentation fault) via a request to content/advancedsearch.php with an empty SearchContentClassID parameter, reportedly related to a "memory addressing error".