Wordpress » Wordpress : Security Vulnerabilities, CVEs, Published In 2017 CVSS score >= 6

The register_routes function in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in the REST API in WordPress 4.7.x before 4.7.2 does not require an integer identifier, which allows remote attackers to modify arbitrary pages via a request for wp-json/wp/v2/posts followed by a numeric value and a non-numeric value, as demonstrated by the wp-json/wp/v2/posts/123?id=123helloworld URI.

wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restrictions by entering this string.

WordPress before 4.8.3 is affected by an issue where $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi) in plugins and themes, as demonstrated by a "double prepare" approach, a different vulnerability than CVE-2017-14723.

WordPress 4.8.2 stores cleartext wp_signups.activation_key values (but stores the analogous wp_users.user_activation_key values as hashes), which might make it easier for remote attackers to hijack unactivated user accounts by leveraging database read access (such as access gained through an unspecified SQL injection vulnerability).

Before version 4.8.2, WordPress was vulnerable to a cross-site scripting attack via shortcodes in the TinyMCE visual editor.

Before version 4.8.2, WordPress was vulnerable to cross-site scripting in oEmbed discovery.

Before version 4.8.2, WordPress mishandled % characters and additional placeholder values in $wpdb->prepare, and thus did not properly address the possibility of plugins and themes enabling SQL injection attacks.

Before version 4.8.2, WordPress allowed a Directory Traversal attack in the Customizer component via a crafted theme filename.

Before version 4.8.2, WordPress allowed Cross-Site scripting in the plugin editor via a crafted plugin name.

Before version 4.8.2, WordPress allowed a Cross-Site scripting attack in the template list view via a crafted template name.

Before version 4.8.2, WordPress was vulnerable to a directory traversal attack during unzip operations in the ZipArchive and PclZip components.

Before version 4.8.2, WordPress was susceptible to a Cross-Site Scripting attack in the link modal via a javascript: or data: URL.

In WordPress before 4.7.5, there is insufficient redirect validation in the HTTP class, leading to SSRF.

In WordPress before 4.7.5, there is a lack of capability checks for post meta data in the XML-RPC API.

In WordPress before 4.7.5, a Cross Site Request Forgery (CSRF) vulnerability exists in the filesystem credentials dialog because a nonce is not required for updating credentials.

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability related to the Customizer exists, involving an invalid customization session.

In WordPress before 4.7.5, there is improper handling of post meta data values in the XML-RPC API.

In WordPress before 4.7.5, a cross-site scripting (XSS) vulnerability exists when attempting to upload very large files, because the error message does not properly restrict presentation of the filename.

In WordPress before 4.7.3, there is cross-site request forgery (CSRF) in Press This (wp-admin/includes/class-wp-press-this.php), leading to excessive use of server resources. The CSRF can trigger an outbound HTTP request for a large file that is then parsed by Press This.

In WordPress before 4.7.3 (wp-admin/js/tags-box.js), there is cross-site scripting (XSS) via taxonomy term names.

In WordPress before 4.7.3 (wp-includes/pluggable.php), control characters can trick redirect URL validation.

Cross-site scripting (XSS) vulnerability in wp-admin/includes/class-wp-posts-list-table.php in the posts list table in WordPress before 4.7.2 allows remote attackers to inject arbitrary web script or HTML via a crafted excerpt.

SQL injection vulnerability in wp-includes/class-wp-query.php in WP_Query in WordPress before 4.7.2 allows remote attackers to execute arbitrary SQL commands by leveraging the presence of an affected plugin or theme that mishandles a crafted post type name.

wp-includes/ms-functions.php in the Multisite WordPress API in WordPress before 4.7.1 does not properly choose random numbers for keys, which makes it easier for remote attackers to bypass intended access restrictions via a crafted (1) site signup or (2) user signup.

Cross-site request forgery (CSRF) vulnerability in the widget-editing accessibility-mode feature in WordPress before 4.7.1 allows remote attackers to hijack the authentication of unspecified victims for requests that perform a widgets-access action, related to wp-admin/includes/class-wp-screen.php and wp-admin/widgets.php.