The user module in Drupal 5.x before 5.11 and 6.x before 6.5 might allow remote authenticated users to bypass intended login access rules and successfully login via unknown vectors.

The validation functionality in the core upload module in Drupal 6.x before 6.5 allows remote authenticated users to bypass intended access restrictions and "attach files to content," related to a "logic error."

Cross-site scripting (XSS) vulnerability in the stock quotes page in Stock 6.x before 6.x-1.0, a module for Drupal, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

SQL injection vulnerability in Node Vote 5.x before 5.x-1.1 and 6.x before 6.x-1.0, a module for Drupal, when "Allow user to vote again" is enabled, allows remote authenticated users to execute arbitrary SQL commands via unspecified vectors related to a "previously cast vote."

Cross-site scripting (XSS) vulnerability in the output filter in Drupal 5.x before 5.10 and 6.x before 6.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The private filesystem in Drupal 5.x before 5.10 and 6.x before 6.4 trusts the MIME type sent by a web browser, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks by uploading files containing arbitrary web script or HTML.

Unrestricted file upload vulnerability in the BlogAPI module in Drupal 5.x before 5.10 and 6.x before 6.4 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, which is not validated.

Multiple cross-site request forgery (CSRF) vulnerabilities in forms in Drupal 6.x before 6.4 allow remote attackers to perform unspecified actions via unknown vectors, related to improper token validation for (1) cached forms and (2) forms with AHAH elements.

Multiple cross-site request forgery (CSRF) vulnerabilities in Drupal 5.x before 5.10 and 6.x before 6.4 allow remote attackers to hijack the authentication of administrators for requests that (1) add or (2) delete user access rules.

The Upload module in Drupal 6.x before 6.4 allows remote authenticated users to edit nodes, delete files, and download unauthorized attachments via unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in Drupal 6.x before 6.3 allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) free tagging taxonomy terms, which are not properly handled on node preview pages, and (2) unspecified OpenID values.

The Drupal filter_xss_admin function in 5.x before 5.8 and 6.x before 6.3 does not "prevent use of the object HTML tag in administrator input," which has unknown impact and attack vectors, probably related to an insufficient cross-site scripting (XSS) protection mechanism.

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."

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.

Session fixation vulnerability in Drupal 5.x before 5.9 and 6.x before 6.3, when contributed modules "terminate the current request during a login event," allows remote attackers to hijack web sessions via unknown 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."

SQL injection vulnerability in the LifeType (formerly pLog) module for Drupal allows remote attackers to execute arbitrary SQL commands via the albumId parameter in a ViewAlbum action to index.php.

Cross-site scripting (XSS) vulnerability in the insertion filter in the Flickr Drupal module 5.x before 5.x-1.3 and 6.x before 6.x-1.0-alpha allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The menu system in Drupal 6 before 6.2 has incorrect menu settings, which allows remote attackers to (1) edit the profile pages of arbitrary users, and obtain sensitive information from (2) tracker and (3) blog pages, related to a missing check for the "access content" permission; and (4) allows remote authenticated users, with administration page view access, to edit content types.

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.