A newly discovered security vulnerability, CVE-2023-49758, has been identified in the Veribo-Roland Murg WP Booking System, a widely used WordPress plugin for online reservation and booking management. This vulnerability allows attackers to exploit the improperly configured access control security levels, potentially leading to unauthorized access, manipulation of bookings, or even exposing sensitive user information.

The vulnerability affects the WP Booking System from version n/a up to version 2..19.2. Users are advised to review their versions of the plugin and update it as soon as possible.

Exploit Details

The CVE-2023-49758 vulnerability stems from a missing authorization implementation in some parts of the plugin's code, which can be exploited by attackers to perform unauthorized actions, opening up the potential for compromising the privacy and integrity of the bookings and user data.

To illustrate how this vulnerability can be exploited, let's examine a sample code snippet from the plugin:

function process_booking() {
  $user_id = get_current_user_id();
  $booking_id = $_POST['booking_id'];
  
  if (is_user_allowed_to_access_booking($user_id, $booking_id)) {
    // Process the booking...
  }
}

function is_user_allowed_to_access_booking($user_id, $booking_id) {
  $user = get_userdata($user_id);
  $booking = get_booking($booking_id);

  return $user->ID === $booking->user_id;
}

In the code snippet above, the process_booking() function checks if the currently logged-in user is allowed to access the specified booking by calling the is_user_allowed_to_access_booking() function. The problem is that an attacker could potentially bypass this check and access the booking details.

To exploit this vulnerability, an attacker could send a malicious request similar to the following

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: example.com
Content-Type: application/x-www-form-urlencoded
Content-Length: ...

action=process_booking&booking_id=12345

If the request is properly crafted, the attacker can potentially gain unauthorized access to the booking details, allowing them to manipulate or even delete the booking, leading to significant issues for the affected website's booking management.

Original References and CVE Details

The CVE-2023-49758 vulnerability was originally reported and documented by security researchers in the following official references:

1. NVD Details: https://nvd.nist.gov/vuln/detail/CVE-2023-49758
2. Mitre Details: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-49758

Mitigation and Recommendations

Users of the affected WP Booking System plugin are advised to take the following steps to mitigate the potential impact of this vulnerability:

1. Determine the version of the WP Booking System plugin installed on your WordPress site. If your plugin's version is between n/a and 2..19.2, it is affected by the vulnerability.
2. Update the plugin to the latest version as soon as possible. This will ensure that your version of the WP Booking System plugin is patched against known vulnerabilities, including CVE-2023-49758.
3. Regularly review and update the access controls implemented on your WordPress site. This includes enforcing strict access control security measures, such as only granting the necessary permissions to trusted users.
4. Regularly monitor your website's logs for any suspicious activity that may indicate attempted exploitation of this vulnerability or any other potential security threats.

In conclusion, CVE-2023-49758 is a serious vulnerability discovered in the Veribo-Roland Murg WP Booking System plugin that affects improperly configured access control security levels. By updating the affected plugin and implementing strong security measures, you can help protect your website and its users from potential exploits of this vulnerability.

Timeline

Published on: 12/09/2024 13:15:35 UTC