Drupal — система управления контентом с открытым исходным кодом. На Drupal работает более миллиона сайтов — от личных блогов до сайтов компаний, политических партий и государственных организаций.

The Simple Access module for Drupal 5.x through 5.x-1.2-2 does not properly handle the privacy information for nodes, which might allow remote attackers to bypass intended access restrictions, and read or modify nodes, in opportunistic circumstances related to interaction between Simple Access and (1) Node clone or (2) Project issue tracking.

Cross-site request forgery (CSRF) vulnerability in Drupal 6.x before 6.3 allows remote attackers to perform administrative actions via vectors involving deletion of OpenID identities.

Cross-site request forgery (CSRF) vulnerability in Drupal 5.x before 5.8 and 6.x before 6.3 allows remote attackers to perform administrative actions via vectors involving deletion of "translated strings."

CRLF injection vulnerability in the drupal_goto function in includes/common.inc Drupal 4.7.x before 4.7.8 and 5.x before 5.3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

SQL injection vulnerability in the Schema API in Drupal 6.x before 6.3 allows remote attackers to execute arbitrary SQL commands via vectors related to "an inappropriate placeholder for 'numeric' fields."

Multiple SQL injection vulnerabilities in the Aggregation module 5.x before 5.x-4.4 for Drupal allow remote attackers to execute arbitrary SQL commands via unspecified vectors.

Cross-site request forgery (CSRF) vulnerability in the aggregator module in Drupal 4.7.x before 4.7.11 and 5.x before 5.6 allows remote attackers to delete items from a feed as privileged users.

Cross-site scripting (XSS) vulnerability in the Archive 5.x before 5.x-1.8 module for Drupal allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Drupal 4.6.x before 4.6.7 and 4.7.0, when running on Apache with mod_mime, does not properly handle files with multiple extensions, which allows remote attackers to upload, modify, or execute arbitrary files in the files directory.

** 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."