The EventON WordPress plugin before 4.5.5, EventON WordPress plugin before 2.2.7 do not have authorisation in an AJAX action, allowing unauthenticated users to retrieve the settings of arbitrary virtual events, including any meeting password set (for example for Zoom)

The EventON WordPress plugin before 4.5.5, EventON WordPress plugin before 2.2.7 do not have authorisation in an AJAX action, allowing unauthenticated users to retrieve email addresses of any users on the blog

The EventON WordPress plugin before 4.5.5, EventON WordPress plugin before 2.2.7 do not properly sanitise and escape a parameter before outputting it back in pages, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The EventON WordPress plugin before 2.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored HTML Injection attacks even when the unfiltered_html capability is disallowed.

The EventON WordPress plugin before 4.5.5, EventON WordPress plugin before 2.2.7 does not sanitize and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.5.4 (Pro) & 2.2.8 (Free). This is due to missing or incorrect nonce validation on the save_virtual_event_settings function. This makes it possible for unauthenticated attackers to modify virtual event settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.5.4 (for Pro) & 2.2.7 (for Free). This is due to missing or incorrect nonce validation on the evo_eventpost_update_meta function. This makes it possible for unauthenticated attackers to update arbitrary post metadata via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the evo_eventpost_update_meta function in all versions up to, and including, 4.5.4 (for Pro) and 2.2.7 (for free). This makes it possible for unauthenticated attackers to update and remove arbitrary post metadata. Note that certain parameters may allow for content injection.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Cool Plugins Events Shortcodes For The Events Calendar.This issue affects Events Shortcodes For The Events Calendar: from n/a through 2.3.1.

Sandbox Accounts for Events provides multiple, temporary AWS accounts to a number of authenticated users simultaneously via a browser-based GUI. Authenticated users could potentially read data from the events table by sending request payloads to the events API, collecting information on planned events, timeframes, budgets and owner email addresses. This data access may allow users to get insights into upcoming events and join events which they have not been invited to. This issue has been patched in version 1.10.0.