An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Meta. An attacker could supply an array parameter for sensitive metadata, such as the wp_capabilities user meta that defines a user's role. During the registration process, submitted registration details were passed to the update_profile function, and any metadata was accepted, e.g., wp_capabilities[administrator] for Administrator access.

A Remote Code Execution vulnerability exists in the gVectors wpDiscuz plugin 7.0 through 7.0.4 for WordPress, which allows unauthenticated users to upload any type of file, including PHP files via the wmuUploadFiles AJAX action.

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).

The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because includes/plugin.rest-api.php calls trx_addons_rest_get_sc_layout with an unsafe sc parameter.

The ListingPro - WordPress Directory & Listing Theme for WordPress is vulnerable to Arbitrary Plugin Installation, Activation and Deactivation in versions before 2.6.1. This is due to a missing capability check on the lp_cc_addons_actions function. This makes it possible for unauthenticated attackers to arbitrarily install, activate and deactivate any plugin.

The following themes for WordPress are vulnerable to Function Injections in versions up to and including Shapely <= 1.2.7, NewsMag <= 2.4.1, Activello <= 1.4.0, Illdy <= 2.1.4, Allegiant <= 1.2.2, Newspaper X <= 1.3.1, Pixova Lite <= 2.0.5, Brilliance <= 1.2.7, MedZone Lite <= 1.2.4, Regina Lite <= 2.0.4, Transcend <= 1.1.8, Affluent <= 1.1.0, Bonkers <= 1.0.4, Antreas <= 1.0.2, Sparkling <= 2.4.8, and NatureMag Lite <= 1.0.4. This is due to epsilon_framework_ajax_action. This makes it possible for unauthenticated attackers to call functions and achieve remote code execution.

The Adning Advertising plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the _ning_upload_image function in versions up to, and including, 1.5.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

In Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients.