URL Redirection to Untrusted Site ('Open Redirect') vulnerability in KB Support KB Support. This issue affects KB Support: from n/a through 1.6.7.

The KB Support – WordPress Help Desk and Knowledge Base plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on the 'kbs_ajax_load_front_end_replies' and 'kbs_ajax_mark_reply_as_read' functions in all versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to read replies of any ticket, and mark any reply as read.

The KB Support – WordPress Help Desk and Knowledge Base plugin for WordPress is vulnerable to unauthorized modification and loss of data due to a missing capability check on several functions in all versions up to, and including, 1.6.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform multiple administrative actions, such as replying to arbitrary tickets, updating the status of any post, deleting any post, adding notes to tickets, flagging or unflagging tickets, and adding or removing ticket participants.

Missing Authorization vulnerability in WPOmnia KB Support.This issue affects KB Support: from n/a through 1.6.0.

Missing Authorization vulnerability in WPOmnia KB Support – WordPress Help Desk and Knowledge Base allows Accessing Functionality Not Properly Constrained by ACLs. Users with a role as low as a subscriber can view other customers.This issue affects KB Support – WordPress Help Desk and Knowledge Base: from n/a through 1.5.88.

Improper Neutralization of Formula Elements in a CSV File vulnerability in WPOmnia KB Support.This issue affects KB Support: from n/a through 1.5.84.

Multiple Unauthenticated Stored Cross-Site Scripting (XSS) vulnerabilities in KB Support (WordPress plugin) <= 1.5.5 versions.