The Easy Appointments WordPress plugin through 4.0 does not perform capability checks in several of its appointment-management actions, relying only on a nonce that any authenticated user can obtain, allowing users with contributor-level access to read all customers' appointment details and to create, modify, and delete bookings.

The Events Calendar WordPress plugin before 6.17.5 does not perform a per-object capability check on one family of its REST write routes, allowing users with a low-privilege role such as contributor to modify, unpublish, trash and take ownership of records belonging to other users, including administrators.

The Fluent Support WordPress plugin before 2.3.1 does not perform a per-ticket access check before reassigning a ticket's customer, allowing a restricted support agent to change the assigned customer of any ticket in the system, including tickets outside their granted scope.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.

The Nexter Blocks WordPress plugin before 5.0.2 does not restrict who can save global CSS through one of its REST endpoints, allowing users with at least the Contributor role to store arbitrary CSS that is rendered site-wide on the front end, enabling defacement, content hiding, and UI redressing.

The Easy Appointments WordPress plugin before 3.12.28 does not perform any capability or nonce check in one of its connection-deletion actions, allowing users with contributor-level access to delete the booking configuration and disable the booking system.

The WPBot WordPress plugin before 8.5.2 does not validate administrator-configured field identifiers before using them in a SQL query, allowing users with administrator access to perform SQL injection that executes when a visitor triggers a search.

The FluentBoards WordPress plugin before 2.0.15 does not verify that a board member submitting a comment is the user the comment is attributed to, allowing any board member to post comments that appear to be authored by another user, including administrators.

The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment and payment records requested through its staff-role AJAX actions belong to the requesting staff member, allowing authenticated attackers with a staff-level account to view, modify and delete other staff members' appointments and payments, including the associated customer's personal information.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.

The Timetics WordPress plugin through 1.0.61 does not enforce per-object ownership when updating appointments through its REST API, allowing users with its custom staff role to modify, disable, or take over appointments belonging to other staff members.

The FluentBoards WordPress plugin before 2.0.15 does not properly verify that a user holds board-manager privileges before performing several board-management operations, checking only board membership. This allows any member of a board to carry out manager-only actions on it, including adding or removing members and enabling public access to a private board.

The Hydra Booking — Appointment Scheduling & Booking Calendar WordPress plugin before 1.2.2 does not verify that a booking belongs to the requesting user before modifying or deleting it on two of its booking endpoints, allowing a booking-provider-level user to cancel and permanently delete other providers' bookings on the same site.

The King Addons for Elementor WordPress plugin before 51.1.81 does not perform per-object authorization checks on a group of image-optimization actions, gating them only on a coarse capability that lower-privileged users also hold and never confirming ownership of the targeted object, allowing authenticated users with author-level access and above to disclose absolute file paths for, overwrite the bytes of, and site-wide re-reference media belonging to other users, including administrators.

The ProfileGrid WordPress plugin before 5.9.9.7 does not perform a capability check on its license management actions, relying only on a nonce that is exposed to any logged-in user, allowing authenticated users with Subscriber-level access and above to overwrite the site's premium license settings.

The Booking for Appointments and Events Calendar WordPress plugin before 9.7 does not verify that an authenticated employee (provider) is related to the customer whose record is being accessed, allowing any employee with an Employee Panel login to read and modify the stored personal data of any customer by enumerating sequential identifiers.

The MonsterInsights WordPress plugin before 11.1.0 does not correctly validate the signature on one of its unauthenticated AJAX actions: when the MonsterInsights WordPress plugin before 11.1.0 is not connected to Google Analytics the HMAC signing key is empty, which lets unauthenticated attackers forge a valid signature and overwrite a MonsterInsights WordPress plugin before 11.1.0 configuration value, disrupting the MonsterInsights WordPress plugin before 11.1.0's server-side analytics in Manual GA4 mode.

The Robokassa payment gateway for Woocommerce WordPress plugin before 1.8.9 does not verify the authenticity of incoming payment notifications when its non-default deferred-payment feature is enabled, allowing unauthenticated attackers to forge a notification and mark arbitrary WooCommerce orders as paid or on-hold without payment or a valid signature.

The Pie Register WordPress plugin before 3.8.4.14 does not restrict access to an invitation-code report, allowing unauthenticated visitors who know a valid invitation code to obtain the username and email address of every user who registered with that code.

The Support Genix WordPress plugin before 1.4.48 does not properly authorize access to support-ticket attachment downloads, allowing unauthenticated users who obtain the stored attachment file name to download other users' private ticket attachments.