The redirect module in Liferay Portal before 7.3.3 does not limit the number of URLs resulting in a 404 error that is recorded, which allows remote attackers to perform a denial of service attack by making repeated requests for pages that do not exist.

Liferay Portal before 7.3.3, and Liferay DXP 7.1 before fix pack 18 and 7.2 before fix pack 6, does not restrict the size of a multipart/form-data POST action, which allows remote authenticated users to conduct denial-of-service attacks by uploading large files.

In Liferay Portal before 7.3.2 and Liferay DXP 7.0 before fix pack 92, 7.1 before fix pack 18, and 7.2 before fix pack 6, the template API does not restrict user access to sensitive objects, which allows remote authenticated users to execute arbitrary code via crafted FreeMarker and Velocity templates.

Liferay Portal 7.x before 7.3.2, and Liferay DXP 7.0 before fix pack 92, 7.1 before fix pack 18, and 7.2 before fix pack 5 does not sanitize the information returned by the DDMDataProvider API, which allows remote authenticated users to obtain the password to REST Data Providers.

In Liferay Portal before 7.1 CE GA4, an XSS vulnerability exists in the SimpleCaptcha API when custom code passes unsanitized input into the "url" parameter of the JSP taglib call <liferay-ui:captcha url="<%= url %>" /> or <liferay-captcha:captcha url="<%= url %>" />. Liferay Portal out-of-the-box behavior with no customizations is not vulnerable.

Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

Liferay Portal through 7.2.0 GA1 allows XSS via a journal article title to journal_article/page.jsp in journal/journal-taglib.

An issue was discovered in Liferay Portal CE 7.1.2 GA3. An attacker can use Liferay's Groovy script console to execute OS commands. Commands can be executed via a [command].execute() call, as demonstrated by "def cmd =" in the ServerAdminPortlet_script value to group/control_panel/manage. Valid credentials for an application administrator user account are required. NOTE: The developer disputes this as a vulnerability since it is a feature for administrators to run groovy scripts and therefore not a design flaw

Liferay 6.2.x and before has an FCKeditor configuration that allows an attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment via a browser/liferay/browser.html?Type= or html/js/editor/fckeditor/editor/filemanager/browser/liferay/browser.html URI. NOTE: the vendor disputes this issue because file upload is an expected feature, subject to Role Based Access Control checks where only authenticated users with proper permissions can upload files

Cross-site scripting (XSS) vulnerability in the /html/portal/flash.jsp page in Liferay Portal CE 7.0 GA4 and older allows remote attackers to inject arbitrary web script or HTML via a javascript: URI in the "movie" parameter.