CVE-2025-23017Network attack vector

MFA bypass via new-factor enrollment

Published Feb 24, 2025 · Updated Feb 24, 2025

Authentication bypass in WorkOS Hosted AuthKit before 2025-01-07 allows remote authenticated users to bypass MFA during sign-in. The Hosted AuthKit MFA enrollment flow accepts a password-authenticated session and permits registration of a new factor without the existing factor. The flaw requires password authentication and MFA to be enabled; a stolen password then grants access protected by the original factor.

CVSS severity6.0
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in WorkOS Hosted AuthKit before 2025-01-07 allows remote authenticated users to bypass MFA during sign-in. The Hosted AuthKit MFA enrollment flow accepts a password-authenticated session and permits registration of a new factor without the existing factor. The flaw requires password authentication and MFA to be enabled; a stolen password then grants access protected by the original factor.

The record

CVE
CVE-2025-23017
Published
Feb 24, 2025
Updated
Feb 24, 2025
Vendor
WorkOS
Product
Hosted AuthKit
Classifications
CWE-305, T1556.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025-01-07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WorkOS · Hosted AuthKitversion=0 <2025-01-07

Published CVSS scores

6.0MITRECVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-305Authentication Bypass by Primary Weakness
T1556.006Modify Authentication Process: Multi-Factor Authentication

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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