BaseFortify

Publication date: 2025-11-20

Last updated on: 2025-12-03

Assigner: MITRE

Description

An issue was discovered in clerk-js 5.88.0 allowing attackers to bypass the OAuth authentication flow by manipulating the request at the OTP verification stage. NOTE: this is disputed by the Supplier because there is no available information to reproduce the issue, and because an OAuth authentication flow issue would be fixed in a backend component, not within clerk-js itself (which is solely a frontend component).

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-20

Last Modified

2025-12-03

Generated

2026-07-06

AI Q&A

2025-11-20

EPSS Evaluated

2025-12-23

NVD

CVE-2025-63700

Affected Vendors & Products

Vendor	Product	Version / Range
clerk	clerk-js	5.88.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-290	This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

Attack-Flow Graph

Executive Summary

This vulnerability in Clerk-js 5.88.0 allows attackers to bypass the OAuth authentication flow by manipulating the request during the OTP verification stage.

Impact Analysis

An attacker exploiting this vulnerability could bypass authentication, potentially gaining unauthorized access to user accounts or protected resources.

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