CVE-2025-48370
CVE-2025-48370 is a low-severity vulnerability with a CVSS 4.0 base score of 2.7. 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-22.
Key facts
- Severity: Low (CVSS 4.0 base score 2.7)
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-16354
- Weakness: CWE-22
- Published:
- Last modified:
Description
auth-js is an isomorphic Javascript library for Supabase Auth. Prior to version 2.70.0, the library functions getUserById, deleteUser, updateUserById, listFactors and deleteFactor did not require the user supplied values to be valid UUIDs. This could lead to a URL path traversal, resulting in the wrong API function being called. Implementations that follow security best practice and validate user controlled inputs, such as the userId are not affected by this. This issue has been patched in version 2.70.0.
Frequently asked questions
- What is CVE-2025-48370?
- auth-js is an isomorphic Javascript library for Supabase Auth. Prior to version 2.70.0, the library functions getUserById, deleteUser, updateUserById, listFactors and deleteFactor did not require the user supplied values to be valid UUIDs. This could lead to a URL path traversal, resulting in the wrong API function being called. Implementations that follow security best practice and validate user controlled inputs, such as the userId are not affected by this. This issue has been patched in version 2.70.0.
- How severe is CVE-2025-48370?
- CVE-2025-48370 has a CVSS 4.0 base score of 2.7, rated low severity.
- Is CVE-2025-48370 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-48370?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-48370 have an EU (EUVD) identifier?
- Yes. CVE-2025-48370 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16354.
- When was CVE-2025-48370 published?
- CVE-2025-48370 was published on 2025-05-27 and last updated on 2026-06-17.
References
- https://github.com/supabase/auth-js/commit/1bcb76e479e51cd9bca2d7732d0bf3199e07a693
- https://github.com/supabase/auth-js/pull/1063
- https://github.com/supabase/auth-js/security/advisories/GHSA-8r88-6cj9-9fh5
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