How severe is CVE-2025-5304?

CVE-2025-5304 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-5304 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-5304?

CVE-2025-5304 affects Ptoffice Pt Project Notebooks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-5304?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-5304 have an EU (EUVD) identifier?

Yes. CVE-2025-5304 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19577.

When was CVE-2025-5304 published?

CVE-2025-5304 was published on 2025-06-28 and last updated on 2026-06-17.

CVE-2025-5304

CVE-2025-5304 is a critical-severity vulnerability in Ptoffice Pt Project Notebooks with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19577
Weakness: CWE-862
Affected product: Ptoffice Pt Project Notebooks
Published: 2025-06-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-5304?: 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.
How severe is CVE-2025-5304?: CVE-2025-5304 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-5304 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-5304?: CVE-2025-5304 affects Ptoffice Pt Project Notebooks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-5304?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-5304 have an EU (EUVD) identifier?: Yes. CVE-2025-5304 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19577.
When was CVE-2025-5304 published?: CVE-2025-5304 was published on 2025-06-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ptoffice:pt_project_notebooks:*:*:*:*:*:wordpress:*:*

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