Stored cross-site scripting (XSS) vulnerability in Message Board widget in Liferay Portal 7.2.0 through 7.4.2, and older unsupported versions, and Liferay DXP 7.3 before service pack 3, 7.2 before fix pack 17, and older unsupported versions allows remote authenticated users to inject arbitrary web script or HTML via the filename of an attachment.

Cross-site scripting (XSS) vulnerability in HtmlUtil.escapeJsLink in Liferay Portal 7.2.0 through 7.4.1, and older unsupported versions, and Liferay DXP 7.3 before service pack 3, 7.2 before fix pack 15, and older unsupported versions allows remote attackers to inject arbitrary web script or HTML via crafted javascript: style links.

The Account Settings page in Liferay Portal 7.4.3.76 through 7.4.3.99, and Liferay DXP 2023.Q3 before patch 5, and 7.4 update 76 through 92 embeds the user’s hashed password in the page’s HTML source, which allows man-in-the-middle attackers to steal a user's hashed password.

User enumeration vulnerability in Liferay Portal 7.2.0 through 7.4.3.26, and older unsupported versions, and Liferay DXP 7.4 before update 27, 7.3 before update 8, 7.2 before fix pack 20, and older unsupported versions allows remote attackers to determine if an account exist in the application by comparing the request's response time.

In Liferay Portal 7.2.0 through 7.4.3.25, and older unsupported versions, and Liferay DXP 7.4 before update 26, 7.3 before update 5, 7.2 before fix pack 19, and older unsupported versions the default value of the portal property `http.header.version.verbosity` is set to `full`, which allows remote attackers to easily identify the version of the application that is running and the vulnerabilities that affect that version via 'Liferay-Portal` response header.

The Image Uploader module in Liferay Portal 7.2.0 through 7.4.3.15, and older unsupported versions, and Liferay DXP 7.4 before update 16, 7.3 before update 4, 7.2 before fix pack 19, and older unsupported versions relies on a request parameter to limit the size of files that can be uploaded, which allows remote authenticated users to upload arbitrarily large files to the system's temp folder by modifying the `maxFileSize` parameter.

In Liferay Portal 7.2.0 through 7.4.3.12, and older unsupported versions, and Liferay DXP 7.4 before update 9, 7.3 before update 4, 7.2 before fix pack 19, and older unsupported versions, the default configuration does not sanitize blog entries of JavaScript, which allows remote authenticated users to inject arbitrary web script or HTML (XSS) via a crafted payload injected into a blog entry’s content text field.

HtmlUtil.escapeRedirect in Liferay Portal 7.2.0 through 7.4.3.12, and older unsupported versions, and Liferay DXP 7.4 before update 9, 7.3 service pack 3, 7.2 fix pack 15 through 18, and older unsupported versions can be circumvented by using two forward slashes, which allows remote attackers to redirect users to arbitrary external URLs via the (1) 'redirect` parameter (2) `FORWARD_URL` parameter, and (3) others parameters that rely on HtmlUtil.escapeRedirect. This vulnerability is the result of an incomplete fix in CVE-2022-28977.

HtmlUtil.escapeRedirect in Liferay Portal 7.2.0 through 7.4.3.18, and older unsupported versions, and Liferay DXP 7.4 before update 19, 7.3 before update 4, 7.2 before fix pack 19, and older unsupported versions can be circumvented by using the 'REPLACEMENT CHARACTER' (U+FFFD), which allows remote attackers to redirect users to arbitrary external URLs via the (1) 'redirect` parameter (2) `FORWARD_URL` parameter, (3) `noSuchEntryRedirect` parameter, and (4) others parameters that rely on HtmlUtil.escapeRedirect.

The default password hashing algorithm (PBKDF2-HMAC-SHA1) in Liferay Portal 7.2.0 through 7.4.3.15, and older unsupported versions, and Liferay DXP 7.4 before update 16, 7.3 before update 4, 7.2 before fix pack 17, and older unsupported versions defaults to a low work factor, which allows attackers to quickly crack password hashes.