Drupal 7.x before 7.16 allows remote attackers to obtain sensitive information and possibly re-install Drupal and execute arbitrary PHP code via an external database server, related to "transient conditions."
Drupal 6.x before 6.29 and 7.x before 7.24 uses the PHP mtrand function to generate random numbers, which uses predictable seeds and allows remote attackers to predict security strings and bypass intended restrictions via a brute force attack.
DISPUTED Cross-site request forgery (CSRF) vulnerability in Drupal 7.12 and earlier allows remote attackers to hijack the authentication of arbitrary users for requests that end a session via the user/logout URI. NOTE: the vendor disputes the significance of this issue, by considering the "security benefit against platform complexity and performance impact" and concluding that a change to the logout behavior is not planned because "for most sites it is not worth the trade-off."
Open redirect vulnerability in the Form API in Drupal 7.x before 7.13 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via crafted parameters in a destination URL.
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 requestpath function in includes/bootstrap.inc in Drupal 7.14 and earlier allows remote attackers to obtain sensitive information via the q[] parameter to index.php, which reveals the installation path in an error message.
The image module in Drupal 7.x before 7.14 does not properly check permissions when caching derivative image styles of private images, which allows remote attackers to read private image styles.
The Image module in Drupal 7.x before 7.20 allows remote attackers to cause a denial of service (CPU and disk space consumption) via a large number of new derivative requests.
The multisite feature in Drupal 6.x before 6.32 and 7.x before 7.29 allows remote attackers to cause a denial of service via a crafted HTTP Host header, related to determining which configuration file to use.
Cross-site scripting (XSS) vulnerability in the Color module in Drupal 7.x before 7.24 allows remote attackers to inject arbitrary web script or HTML via vectors related to CSS.
The forum list in Drupal 7.x before 7.14 does not properly check user permissions for unpublished forum posts, which allows remote authenticated users to obtain sensitive information such as the post title via the forum overview page.
The Taxonomy module in Drupal 7.x before 7.26, when upgraded from an earlier version of Drupal, does not properly restrict access to unpublished content, which allows remote authenticated users to obtain sensitive information via a listing page.