eZ Systems eZ Publish version 5.4.0 to 5.4.9, and 5.3.12 and older, is vulnerable to an XSS issue in the search module, resulting in a risk of attackers injecting scripts which may e.g. steal authentication credentials.

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.

eZ publish before 3.8.9, and 3.9 before 3.9.3, does not properly check permissions on module views that lack a policy function, which has unknown impact and attack vectors, as demonstrated by a vulnerability in the discount functionality in the shop module.

The tipafriend function in eZ publish before 3.8.9, and 3.9 before 3.9.3, does not limit access by anonymous users, which allows remote attackers to conduct spam attacks.

eZ publish before 3.8.1 does not properly enforce permissions for "content edit Language" when there are four or more languages, which allows remote authenticated users to perform translations into languages that are not listed in a Module Function Limitation policy.

eZ publish before 3.8.5 does not properly enforce permissions for editing in a specific language, which allows remote authenticated users to create a draft in an unauthorized language by editing an archived version of an object, and then using Manage Versions to copy this version to a new draft.

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 20050608 requires both edit and create permissions in order to submit data, which allows remote attackers to edit data submitted by arbitrary anonymous users.

eZ publish 3.4.4 through 3.7 before 20050722 applies certain permissions on the node level, which allows remote authenticated users to bypass the original permissions on embedded objects in XML fields and read these objects.

The siteaccess URIMatching implementation in eZ publish 3.5 through 3.8 before 20050812 converts all non-alphanumeric characters in a URI to '_' (underscore), which allows remote attackers to bypass access restrictions by inserting certain characters in a URI, as demonstrated by a request for /admin:de, which matches a rule allowing only /admin_de to access /admin.

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".