CVE-2025-5304: PT Project Notebooks 1.0.0 - 1.1.3 - Missing Authorization to Unauthenticated Privilege Escalation via wpnb_pto_new_users_add Function

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-06-28 · updated 2026-06-17
Weakness: CWE-862

Description

The PT Project Notebooks plugin for WordPress is vulnerable to Privilege Escalation due to missing authorization in the wpnb_pto_new_users_add() function in versions 1.0.0 through 1.1.3. This makes it possible for unauthenticated attackers to elevate their privileges to that of an administrator.

Affected products

blafoley PT Project Notebooks – Take Meeting minutes, create budgets, track task management, and more: from 1.0.0 through 1.1.3

References

https://plugins.trac.wordpress.org/browser/project-notebooks/tags/1.1.3/includes/structure/admin/pto_admin_settings.php#L233
https://plugins.trac.wordpress.org/browser/project-notebooks/tags/1.1.3/includes/structure/admin/pto_admin_settings.php#L36
https://wordpress.org/plugins/project-notebooks/#developers
https://www.wordfence.com/threat-intel/vulnerabilities/id/552ec9fc-5bff-4bee-be04-39892c89cd59?source=cve

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