What is CVE-2025-6388?

CVE-2025-6388 is a critical-severity vulnerability in Theme-Spirit Spirit Framework, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-10-03.

How severe is CVE-2025-6388?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-6388 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Theme-Spirit Spirit Framework

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.

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 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.

Affected products

Theme-spirit Spirit Framework — versions 0

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

Frequently asked questions

What is CVE-2025-6388?: CVE-2025-6388 is a critical-severity vulnerability in Theme-Spirit Spirit Framework, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-10-03.
How severe is CVE-2025-6388?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-6388 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.