CVE-2025-31681Network attack vector

Cross-account 2FA configuration access via unprotected paths

Published Mar 31, 2025 · Updated Apr 29, 2025

Missing authorization in Drupal Authenticator Login before 2.0.6 allows remote attackers to access another user's 2FA configuration. The module's custom 2FA settings paths omit access protections that authenticate the requester and bind each request to the same account. This exposes cross-account 2FA settings to unauthorized access, while the vendor reports no code-execution or service-interruption consequence.

CVSS severity9.8
Critical
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Drupal Authenticator Login before 2.0.6 allows remote attackers to access another user's 2FA configuration. The module's custom 2FA settings paths omit access protections that authenticate the requester and bind each request to the same account. This exposes cross-account 2FA settings to unauthorized access, while the vendor reports no code-execution or service-interruption consequence.

The record

CVE
CVE-2025-31681
Published
Mar 31, 2025
Updated
Apr 29, 2025
Vendor
OAuth.js
Product
Authenticator Login
Classifications
CWE-862, CAPEC-87, T1556.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=0.0.0 <2.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OAuth.js · Authenticator Loginversion=0.0.0 <2.0.6

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-87Forceful Browsing
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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