The EventON Pro plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check in the 'assets/lib/settings/settings.js' file in all versions up to, and including, 4.9.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 4.9.6.

The EventON PRO - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.6.8. This is due to missing or incorrect nonce validation on the admintestemail function. This makes it possible for unauthenticated attackers to send test emails to arbitrary email addresses via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The EventON WordPress plugin before 2.2.17 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfilteredhtml is disallowed.

The EventON WordPress plugin before 2.2.15 does not sanitise 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 unfilteredhtml capability is disallowed (for example in multisite setup)

The EventON WordPress plugin before 4.4.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The EventON-RSVP WordPress plugin before 2.9.5 does not sanitise and escape some parameters before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The EventON Premium WordPress plugin before 4.5.6, EventON WordPress plugin before 2.2.8 do not have authorisation in an AJAX action, and does not ensure that the post to be updated belong to the plugin, allowing unauthenticated users to update arbitrary post metadata.

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 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 unfilteredhtml capability is disallowed (for example in multisite setup).

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 through 4.5.8, EventON WordPress plugin before 2.2.7 do not have authorisation in some AJAX actions, allowing unauthenticated users to update virtual events settings, such as meeting URL, moderator, access details etc

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 unfilteredhtml capability is disallowed.

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 evoeventpostupdatemeta 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 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 savevirtualeventsettings 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 unauthorized modification of data and loss of data due to a missing capability check on the evoeventpostupdatemeta 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. CVE-2024-0238 appears to be a duplicate of this issue.

The EventON plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in versions up to, and including, 2.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

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 Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed (for example in multisite setup)

The EventON WordPress plugin before 2.1.2 does not validate that the eventid parameter in its eventonicsdownload ajax action is a valid Event, allowing unauthenticated visitors to access any Post (including unpublished or protected posts) content via the ics export functionality by providing the numeric id of the post.

The EventON WordPress plugin before 2.1.2 lacks authentication and authorization in its eventonicsdownload ajax action, allowing unauthenticated visitors to access private and password protected Events by guessing their numeric id.

The EventON plugin through 3.0.5 for WordPress allows addons/?q= XSS via the search field.