CVE-2026-18776 — CRITICAL (9.8)

Vulnerability Description

The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in some of its AJAX actions, allowing unauthenticated users to change the email address of arbitrary users, including administrators, and subsequently take over their account via the password reset flow.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-284

References

https://wpscan.com/vulnerability/4b6abb2d-941b-429f-a480-33d1aafad450/

FAQ

What is CVE-2026-18776?

CVE-2026-18776 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in some of its AJAX actions, allowing unauthenticated users to change the email address of arbitrary users, incl...

How severe is CVE-2026-18776?

CVE-2026-18776 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-18776?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.