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CVE-2023-2834

CRITICAL 9.8 CVSS 3.1
Published
June 30, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-288, CWE-306
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The BookIt plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.3.7. This is due to insufficient verification on the user being supplied during booking an appointment through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the email.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • stellarwp Bookit — Booking & Appointment Calendar — Up to and including 2.3.7
  • stylemixthemes bookit — Up to and including 2.3.7

References

  • lana.codes https://lana.codes/lanavdb/0dea1346-fd60-4338-8af6-6f89c29075d4/ Exploit, Third Party Advisory
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bookit/tags/2.3.6/includes/classes/CustomerController.php#L27 Patch
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bookit/tags/2.3.6/includes/classes/database/Customers.php#L63 Patch
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2919529/bookit Patch
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2925153/bookit Patch
  • www.wordfence.com https://www.wordfence.com/blog/2023/06/stylemixthemes-addresses-authentication-bypass-vulnerability-in-bookit-wordpress-plugin/ Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/cfd32e46-a4fc-4c10-b546-9f9da75db791?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record