The file download facility doesn't sufficiently sanitize file paths in certain situations. This may result in users gaining access to private files that they should not have access to. Some sites may require configuration changes following this security release. Review the release notes for your Drupal version if you have issues accessing private files after updating.

In some situations, the Image module does not correctly check access to image files not stored in the standard public files directory when generating derivative images using the image styles system. Access to a non-public file is checked only if it is stored in the "private" file system. However, some contributed modules provide additional file systems, or schemes, which may lead to this vulnerability. This vulnerability is mitigated by the fact that it only applies when the site sets (Drupal 9) $config['image.settings']['allow_insecure_derivatives'] or (Drupal 7) $conf['image_allow_insecure_derivatives'] to TRUE. The recommended and default setting is FALSE, and Drupal core does not provide a way to change that in the admin UI. Some sites may require configuration changes following this security release. Review the release notes for your Drupal version if you have issues accessing files or image styles after updating.

Drupal core's form API has a vulnerability where certain contributed or custom modules' forms may be vulnerable to improper input validation. This could allow an attacker to inject disallowed values or overwrite data. Affected forms are uncommon, but in certain cases an attacker could alter critical or sensitive data.

jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the `of` option of the `.position()` util from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. Any string value passed to the `of` option is now treated as a CSS selector. A workaround is to not accept the value of the `of` option from untrusted sources.

jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of various `*Text` options of the Datepicker widget from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. The values passed to various `*Text` options are now always treated as pure text, not HTML. A workaround is to not accept the value of the `*Text` options from untrusted sources.

jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the `altField` option of the Datepicker widget from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. Any string value passed to the `altField` option is now treated as a CSS selector. A workaround is to not accept the value of the `altField` option from untrusted sources.

Cross-site scripting (XSS) vulnerability in jquery.ui.dialog.js in the Dialog widget in jQuery UI before 1.10.0 allows remote attackers to inject arbitrary web script or HTML via the title option.

Cross-site request forgery (CSRF) vulnerability in the RESTful Web Services (restws) module 7.x-1.x before 7.x-1.2 and 7.x-2.x before 7.x-2.0-alpha4 for Drupal allows remote attackers to hijack the authentication of arbitrary users via unknown vectors.

Cross-site request forgery (CSRF) vulnerability in the Content Lock module for Drupal allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

The Contact Forms module 7.x-1.x before 7.x-1.2 for Drupal does not specify sufficiently restrictive permissions, which allows remote authenticated users with the "access the site-wide contact form" permission to modify the module settings via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the Glossary module 6.x-1.x before 6.x-1.8 for Drupal allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to "taxonomy information."

Cross-site scripting (XSS) vulnerability in the aberdeen_breadcrumb function in template.php in the Aberdeen theme 6.x-1.x before 6.x-1.11 for Drupal, when set to append the content title to the breadcrumb, allows remote attackers to inject arbitrary web script or HTML via the content title in a breadcrumb.

Cross-site request forgery (CSRF) vulnerability in the Take Control module 6.x-2.x before 6.x-2.2 for Drupal allows remote attackers to hijack the authentication of unspecified users for Ajax requests that manipulate files.

SQL injection vulnerability in the Views module before 6.x-2.13 for Drupal allows remote attackers to execute arbitrary SQL commands via vectors related to "filters/arguments on certain types of views with specific configurations of arguments."

Multiple cross-site scripting (XSS) vulnerabilities in revisioning_theme.inc in the Taxonomy module in the Revisioning module 6.x-3.13 and other versions before 6.x-3.14 for Drupal allow remote authenticated users with certain privileges to inject arbitrary web script or HTML via the (1) tags or (2) term parameters.

Cross-site request forgery (CSRF) vulnerability in the clickthrough tracking functionality in the Forward module 6.x-1.x before 6.x-1.21 and 7.x-1.x before 7.x-1.3 for Drupal allows remote attackers to hijack the authentication of administrators for requests that increase node rankings via the tracking code, possibly related to improper "flood control."

The Forward module 6.x-1.x before 6.x-1.21 and 7.x-1.x before 7.x-1.3 for Drupal does not properly enforce permissions for (1) Recent forwards, (2) Most forwarded, or (3) Dynamic blocks, which allows remote attackers to obtain node titles via unspecified vectors.

Cross-site scripting (XSS) vulnerability in display_renderers/panels_renderer_editor.class.php in the admin view in the Panels module 6.x-2.x before 6.x-3.10 and 7.x-3.x before 7.x-3.0 for Drupal allows remote authenticated users with certain privileges to inject arbitrary web script or HTML via the Region title.

Cross-site scripting (XSS) vulnerability in the Meta tags quick module 7.x-2.x before 7.x-2.3 for Drupal allows remote authenticated users with certain permissions to inject arbitrary web script or HTML via unspecified vectors, probably related to "names of entity bundles."

Cross-site scripting (XSS) vulnerability in the Petition Node module 6.x-1.x before 6.x-1.5 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors related to signing a petition.