# CVE-2026-123064: WP BASE Booking of Appointments, Services and Events privilege escalation

Source: https://junglewise.ai/threats/cve-2026-123064-the-wp-base-booking-of-appointments-services-and-events  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

CVE-2026-123064 · Severity: info · Published 2026-11-09

A WordPress plugin that manages bookings for appointments and services failed to properly restrict access to a user-creation function. Authenticated users with Subscriber-level access (the lowest privilege tier) can exploit this to create a new administrator account, gaining full control of the WordPress site and any data or systems it manages.

Vendors: [WP BASE](https://junglewise.ai/threats/vendors/wp-base).

## Quick answers

**Is CVE-2026-123064 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-123064 being exploited in the wild.

**How severe is CVE-2026-123064?** Informational severity, published 9 November 2026.

**Which products and versions are affected?** WP BASE Booking of Appointments, Services and Events before 6.5.1.

**Is there a fix for CVE-2026-123064?** Yes: fixed in 6.5.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-123064 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-123064?** Check whether you run WP BASE Booking of Appointments or Services and Events at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 6.5.1

## Technical details

The plugin does not adequately restrict access to a user-creation action, allowing authenticated attackers with Subscriber-level privileges to create administrator accounts without proper authorization. This is a privilege escalation vulnerability requiring authentication to exploit; the attacker must have a valid Subscriber account or higher on the WordPress site.

## Affected products

- WP BASE WP BASE Booking of Appointments, Services and Events before 6.5.1

## Timeline

- 2026-11-06: disclosed: Publicly published
- 2026-11-09: advisory: CVE assigned and published

## References

- [https://wpscan.com/vulnerability/9af3dc8d-ee15-448a-b67b-346bdc2669fb/](https://wpscan.com/vulnerability/9af3dc8d-ee15-448a-b67b-346bdc2669fb/)