How severe is CVE-2025-6388?

CVE-2025-6388 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-2025-6388 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-6388?

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-2025-6388 have an EU (EUVD) identifier?

Yes. CVE-2025-6388 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32563.

When was CVE-2025-6388 published?

CVE-2025-6388 was published on 2025-10-03 and last updated on 2026-06-17.

CVE-2025-6388

CVE-2025-6388 is a critical-severity vulnerability 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-288.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32563
Weakness: CWE-288
Published: 2025-10-03
Last modified: 2026-06-17

Description

The Spirit Framework plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.2.14. This is due to the custom_actions() function not properly validating a user's identity prior to authenticating them to the site. This makes it possible for unauthenticated attackers to log in as any user, including administrators, granted they have access to the administrator's username.

Frequently asked questions

What is CVE-2025-6388?: The Spirit Framework plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.2.14. This is due to the custom_actions() function not properly validating a user's identity prior to authenticating them to the site. This makes it possible for unauthenticated attackers to log in as any user, including administrators, granted they have access to the administrator's username.
How severe is CVE-2025-6388?: CVE-2025-6388 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-2025-6388 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-6388?: 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-2025-6388 have an EU (EUVD) identifier?: Yes. CVE-2025-6388 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32563.
When was CVE-2025-6388 published?: CVE-2025-6388 was published on 2025-10-03 and last updated on 2026-06-17.

References

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