CVE-2025-10928Network attack vectorHinoki check available

Account access via access-code uniqueness oracle

Published Oct 29, 2025 · Updated Oct 29, 2025

Access bypass in Drupal Access code before 2.0.5 allows remote authenticated users to discover other users' access codes via form feedback. The access-code edit form enforces uniqueness by revealing when a user-selected code is already assigned, turning validation feedback into an account-code oracle. Exploitation requires the change own access code permission and permits repeated guessing that can expose codes used to sign in as other users.

CVSS severity6.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Access bypass in Drupal Access code before 2.0.5 allows remote authenticated users to discover other users' access codes via form feedback. The access-code edit form enforces uniqueness by revealing when a user-selected code is already assigned, turning validation feedback into an account-code oracle. Exploitation requires the change own access code permission and permits repeated guessing that can expose codes used to sign in as other users.

The record

CVE
CVE-2025-10928
Published
Oct 29, 2025
Updated
Oct 29, 2025
Vendor
OAuth.js
Product
Access code
Classifications
CWE-307, CAPEC-112, T1110
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 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 <2.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OAuth.js · Access codeversion=0.0.0 <2.0.5

Published CVSS scores

6.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
CAPEC-112Brute Force
T1110Brute Force

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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