The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7.2. This is due to missing or incorrect nonce validation on the 'save' function. This makes it possible for unauthenticated attackers to change plugin access privileges via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Successful exploitation allows attackers with subscriber-level privileges and above to upload arbitrary files on the affected site's server which may make remote code execution possible.

The VikBooking Hotel Booking Engine & PMS WordPress plugin before 1.6.8's access control mechanism fails to properly restrict access to its settings, permitting any users that can access a menu to manipulate requests and perform unauthorized actions such as editing, renaming or deleting (categories for example) despite initial settings prohibiting such access. This vulnerability resembles broken access control, enabling unauthorized users to modify critical VikBooking Hotel Booking Engine & PMS WordPress plugin before 1.6.8 configurations.

The VikBooking Hotel Booking Engine & PMS WordPress plugin before 1.6.8 allows direct access to menus, allowing an authenticated user with subscriber privileges or above, to bypass authorization and access settings of the VikBooking Hotel Booking Engine & PMS WordPress plugin before 1.6.8's they shouldn't be allowed to.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in VikBooking Hotel Booking Engine & PMS allows Reflected XSS.This issue affects VikBooking Hotel Booking Engine & PMS: from n/a through 1.6.7.

Cross-Site Request Forgery (CSRF) vulnerability in E4J s.R.L. VikBooking Hotel Booking Engine & PMS plugin <= 1.6.1 versions.

Cross-Site Request Forgery (CSRF) vulnerability in E4J s.R.L. VikBooking Hotel Booking Engine & PMS plugin <= 1.5.12 versions.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in E4J s.R.L. VikBooking Hotel Booking Engine & PMS plugin <= 1.5.11 versions.

Sensitive Information Exposure in E4J s.r.l. VikBooking Hotel Booking Engine & PMS plugin <= 1.5.3 on WordPress allows attackers to get the booking data by guessing / brute-forcing easy predictable booking IDs via search POST requests.

Arbitrary File Upload leading to RCE in E4J s.r.l. VikBooking Hotel Booking Engine & PMS plugin <= 1.5.3 on WordPress allows attackers to upload and execute dangerous file types (e.g. PHP shell) via the signature upload on the booking form.