The Quiz Maker Business, Developer, and Agency plugins for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'ays_save_google_credentials' function in all versions up to, and including, 8.8.0 (Business), up to, and including, 21.8.0 (Developer), and up to, and including, 31.8.0 (Agency). This makes it possible for unauthenticated attackers to modify the Google Sheets integration credentials within the plugin's settings. Because the 'client_id' parameter is not sanitized or escaped when used in output, this vulnerability could also be leveraged to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WPChill RSVP and Event Management Plugin allows SQL Injection. This issue affects RSVP and Event Management Plugin: from n/a through 2.7.14.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in N.O.U.S. Open Useful and Simple Event post allows Stored XSS. This issue affects Event post: from n/a through 5.9.7.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in MDJM MDJM Event Management allows Reflected XSS. This issue affects MDJM Event Management: from n/a through 1.7.5.5.

The The Events Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Event Calendar Link Widget through the html_tag attribute in all versions up to, and including, 6.9.0 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.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Matthew Blackford, LimeSquare Pty Ltd Lime Developer Login allows Reflected XSS. This issue affects Lime Developer Login: from n/a through 1.4.0.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Ultimate Events allows Reflected XSS. This issue affects Ultimate Events: from n/a through 1.3.3.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Roninwp FAT Event Lite allows Stored XSS. This issue affects FAT Event Lite: from n/a through 1.1.

The Buzz Club – Night Club, DJ and Music Festival Event WordPress Theme theme for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to a missing capability check on the 'cmsmasters_hide_admin_notice' function in all versions up to, and including, 2.0.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update option values to 'hide' on the WordPress site. This can be leveraged to update an option that would create an error on the site and deny service to legitimate users or be used to set some values to true such as registration.

The Evergreen Content Poster – Auto Post and Schedule Your Best Content to Social Media plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the delete_network_post() function in all versions up to, and including, 1.4.4. This makes it possible for unauthenticated attackers to delete arbitrary posts and pages.