CVE-2023-4177

Authenticated account takeover via redirected MFA code delivery

Published Aug 6, 2023 · Updated Aug 2, 2024

Authentication bypass in EmpowerID 7.205.0.0 and earlier allows remote authenticated users to access victim accounts by redirecting MFA codes. The MFA code delivery flow lets a user with valid credentials replace the account email address without verifying the previously registered MFA factor, then sends the code to the replacement address. Knowledge of a valid username and password is required; successful exploitation bypasses the second factor and exposes the victim account's protected data.

CVSS severity2.6
Low
EPSS probability0.21%
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 EmpowerID 7.205.0.0 and earlier allows remote authenticated users to access victim accounts by redirecting MFA codes. The MFA code delivery flow lets a user with valid credentials replace the account email address without verifying the previously registered MFA factor, then sends the code to the replacement address. Knowledge of a valid username and password is required; successful exploitation bypasses the second factor and exposes the victim account's protected data.

The record

CVE
CVE-2023-4177
Published
Aug 6, 2023
Updated
Aug 2, 2024
Vendor
EmpowerID
Product
EmpowerID
Classifications
CWE-345, CWE-200, T1556.006
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=7.205.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

EmpowerID · EmpowerIDversion=7.205.0

Published CVSS scores

2.6VulDBCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
1.4VulDBAV:A/AC:H/Au:S/C:P/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1556.006Multi-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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