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Drupal 5.2 and earlier does not properly unset variables when the inpu ...

Drupal 5.2 and earlier does not properly unset variables when the input data includes a numeric parameter with a value matching an alphanumeric parameter's hash value, which allows remote attackers to execute arbitrary PHP code by invoking the drupal_eval function through a callback parameter to the default URI, as demonstrated by the _menu[callbacks][1][callback] parameter. NOTE: it could be argued that this vulnerability is due to a bug in the unset PHP command (CVE-2006-3017) and the proper fix should be in PHP; if so, then this should not be treated as a vulnerability in Drupal.

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.

Multiple cross-site request forgery (CSRF) vulnerabilities in Drupal 5.x before 5.2 allow remote attackers to (1) delete comments, (2) delete content revisions, and (3) disable menu items as privileged users, related to improper use of HTTP GET and the Forms API.

Multiple cross-site request forgery (CSRF) vulnerabilities in Drupal 5 ...

Multiple cross-site scripting (XSS) vulnerabilities in Drupal 5.x befo ...

Multiple cross-site request forgery (CSRF) vulnerabilities in Drupal 5.x before 5.2 allow remote attackers to (1) delete comments, (2) delete content revisions, and (3) disable menu items as privileged users, related to improper use of HTTP GET and the Forms API.

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.

The (1) Textimage 4.7.x before 4.7-1.2 and 5.x before 5.x-1.1 module for Drupal and the (2) Captcha 4.7.x before 4.7-1.2 and 5.x before 5.x-1.1 module for Drupal allow remote attackers to bypass the CAPTCHA test via an empty captcha element in $_SESSION.

The comment_form_add_preview function in comment.module in Drupal before 4.7.6, and 5.x before 5.1, and vbDrupal, allows remote attackers with "post comments" privileges and access to multiple input filters to execute arbitrary code by previewing comments, which are not processed by "normal form validation routines."