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CVE-2026-14365 – Unauthenticated Account Takeover (Password Reset / Missing Authorization) – TrueBoo

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Summary

CVE-2026-14365 is a critical missing-authorization vulnerability (CWE-862) in the TrueBooker – Appointment Booking and Scheduler System plugin for WordPress. The flaw lets an unauthenticated attacker reset the password of any account, including an administrator, resulting in full account takeover. It carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: The plugin fails to verify user authorization before performing a password reset action, so account ownership is never validated on the front-end handler.
  • Trigger conditions: An attacker supplies a target account identifier via the truebooker_wp_user_id parameter to set an arbitrary password on that account. No authentication or user interaction is required.
  • Attack vector: Network (remote), low complexity, no privileges required.
  • Impact: An unauthenticated attacker can reset the password of any user — including administrators — leading to complete account takeover and full compromise of the site.

Affected software

  • TrueBooker – Appointment Booking and Scheduler System (themetechmount) — all versions from 0 through and including 1.2.3.

Severity

  • CVSS v3.1 base score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Update the TrueBooker plugin to version 1.2.4 or later, which addresses the missing authorization check.
  • If no patch can be applied: Restrict or block network access to the plugin’s front-end account/password-reset endpoints (for example via a WAF rule filtering requests carrying the truebooker_wp_user_id parameter), or deactivate the plugin until it can be updated.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw HTTP response body: /wp-content/plugins/truebooker-appointment-booking/

References

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