The Eventin WordPress plugin before 4.1.24 does not properly authorise order finalisation when its offline (local) payment method is enabled, relying on a nonce that is exposed to unauthenticated visitors and never checking that the caller owns the order, allowing unauthenticated attackers to reset any existing order and its attendees to a pending state and thereby invalidate paid tickets.

The Eventin WordPress plugin before 4.1.24 does not prevent the token issued to a guest at checkout from being used to change that order's tickets afterwards, allowing unauthenticated users to replace a paid ticket with a free one and complete the order at no charge.

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'eventlayout' parameter parameter. This makes it possible for authenticated attackers, with custom-level access and above, to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included.

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to view, create, update, clone, and delete notification flow event automation workflows that should be restricted to administrators.

The Eventin WordPress plugin before 4.1.20 does not properly restrict access to stored customer records, allowing users with contributor-level access and above to read other customers' personal data such as names and email addresses.

The Eventin WordPress plugin before 4.1.21 does not verify the current user's permission to edit other users before assigning roles and updating user metadata during speaker creation, allowing users with contributor-level access and above to modify other users' roles and metadata.

The Eventin WordPress plugin before 4.1.21 does not validate a user-supplied webhook URL stored on events nor verify event ownership, allowing users with contributor-level access and above to trigger blind server-side requests to arbitrary hosts.

The Eventin WordPress plugin before 4.1.19 does not properly restrict which changes a guest checkout token is allowed to authorise on an order, allowing unauthenticated users to mark their own unpaid order as completed and be issued a valid paid ticket with no payment taken.

The Eventin WordPress plugin before 4.1.16 does not properly authorize order creation and accepts an attacker-supplied order status, allowing unauthenticated users to create orders marked as paid without completing any payment.

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'etnfaqcontent' parameter in all versions up to, and including, 4.1.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Event Manager, Events Calendar, Tickets, Registrations – Eventin plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'paymentcomplete' function in all versions up to, and including, 4.0.24. This makes it possible for unauthenticated attackers to update the status of ticket payments to 'completed', possibly resulting in financial loss.

The Event Manager, Events Calendar, Tickets, Registrations – Eventin plugin for WordPress is vulnerable to arbitrary file read in all versions up to, and including, 4.0.26 via the proxyimage() function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. CVE-2025-47445 is a duplicate of this vulnerability.

The Events Calendar, Event Booking, Registrations and Event Tickets – Eventin plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.0.37 via the proxyimage function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

The Eventin plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 4.0.34. This is due to the plugin not properly validating a user's identity or capability prior to updating their details like email in the 'Eventin\Speaker\Api\SpeakerController::updateitem' function. This makes it possible for unauthenticated attackers with contributor-level and above permissions to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.

The Event Manager, Events Calendar, Tickets, Registrations – Eventin plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.0.24 via the 'style' parameter. This makes it possible for authenticated attackers, with Contributor-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.