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CVE-2025-48370— auth-js Vulnerable to Insecure Path Routing from Malformed User Input

Quick assessment

Affected
supabase auth-js
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

auth-js是Supabase开源的一个Supabase Auth的同构Javascript库。 auth-js 2.69.1之前版本存在路径遍历漏洞，该漏洞源于未验证用户提供的UUID，可能导致URL路径遍历。

CVSS 2.7 · Low EPSS 0.80% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
supabase auth-js < 2.70.0 affected
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I. Basic Information for CVE-2025-48370

Vulnerability Information
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Vulnerability Title
auth-js Vulnerable to Insecure Path Routing from Malformed User Input
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
auth-js 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
auth-js是Supabase开源的一个Supabase Auth的同构Javascript库。 auth-js 2.69.1之前版本存在路径遍历漏洞，该漏洞源于未验证用户提供的UUID，可能导致URL路径遍历。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
supabase auth-js < 2.70.0 -

II. Public POCs for CVE-2025-48370

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III. Intelligence Information for CVE-2025-48370

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Patches & Fixes for CVE-2025-48370 (1)

IV. Related Vulnerabilities

Same vendor: supabase
Same weakness: CWE-287

V. Comments for CVE-2025-48370

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