The EventPrime plugin for WordPress is vulnerable to unauthorized post modification due to missing authorization checks in all versions up to, and including, 4.2.8.4. This is due to the save_frontend_event_submission function accepting a user-controlled event_id parameter and updating the corresponding event post without enforcing ownership or capability checks. This makes it possible for authenticated (Customer+) attackers to modify posts created by administrators by manipulating the event_id parameter granted they can obtain a valid nonce.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Eventprime Event Calendar Management Plugin | — | Update eventprime-event-calendar-management plugin to version 4.2.8.5, or a newer patched version | Feb 18, 2026 | Feb 17, 2026 |
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