Drupal 6.x before 6.27 allows remote attackers to obtain sensitive information about uploaded files via a (1) RSS feed or (2) search result.

Drupal Saving user accounts can sometimes grant the user all roles

Drupal Unprivileged access to config export

Improper input validation in Drupal core

The File module in Drupal 7.x before 7.29 does not properly check permissions to view files, which allows remote authenticated users with certain permissions to bypass intended restrictions and read files by attaching the file to content with a file field.

Drupal CRLF injection vulnerability in the drupal_set_header function

CRLF injection vulnerability in Drupal 4.5.x before 4.5.8 and 4.6.x before 4.5.8 allows remote attackers to inject headers of outgoing e-mail messages and use Drupal as a spam proxy.

Cross-site scripting (XSS) vulnerability in Drupal 5.x before 5.17 and 6.x before 6.11, as used in vbDrupal before 5.17.0, allows remote attackers to inject arbitrary web script or HTML via crafted UTF-8 byte sequences before the Content-Type meta tag, which are treated as UTF-7 by Internet Explorer 6 and 7.

The form API in Drupal 6.x before 6.29 and 7.x before 7.24, when used with unspecified third-party modules, performs form validation even when CSRF validation has failed, which might allow remote attackers to trigger application-specific impacts such as arbitrary code execution via application-specific vectors.

The expandArguments function in the database abstraction API in Drupal core 7.x before 7.32 does not properly construct prepared statements, which allows remote attackers to conduct SQL injection attacks via an array containing crafted keys.

Multiple cross-site scripting (XSS) vulnerabilities in Drupal 5.x before 5.2, and 4.7.x before 4.7.7, (1) allow remote attackers to inject arbitrary web script or HTML via "some server variables," including PHP_SELF; and (2) allow remote authenticated administrators to inject arbitrary web script or HTML via custom content type names.

Drupal 5.x before 5.3 does not apply its Drupal Forms API protection against the user deletion form, which allows remote attackers to delete users via a cross-site request forgery (CSRF) attack.

Drupal 7.0 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by modules/simpletest/tests/upgrade/drupal-6.upload.database.php and certain other files.

Drupal Entity access bypass for entities that do not have UUIDs or have protected revisions

The printer friendly version functionality in the Book module in Drupal 6.x before 6.28 and 7.x before 7.19 does not properly restrict access to node that are part of a book outline, which allows remote authenticated users with the "access printer-friendly version" permission to read node titles and possibly node content via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the Locale module (modules/locale/locale.module) in Drupal Core 6.14, and possibly other versions including 6.15, allows remote authenticated users with "administer languages" permissions to inject arbitrary web script or HTML via the (1) Language name in English or (2) Native language name fields in the Custom language form.

The file upload feature in Drupal 6.x before 6.27 and 7.x before 7.18 allows remote authenticated users to bypass the protection mechanism and execute arbitrary PHP code via a null byte in a file name.

Drupal Cross Site Scripting (XSS) vulnerability

Drupal 5.x before 5.19 and 6.x before 6.13 does not properly sanitize failed login attempts for pages that contain a sortable table, which includes the username and password in links that can be read from (1) the HTTP referer header of external web sites that are visited from those links or (2) when page caching is enabled, the Drupal page cache.

Access bypass in Drupal Core