CVE-2025-40732Network attack vector

Unauthenticated username enumeration via name response discrepancy

Published Jun 30, 2025 · Updated Jun 30, 2025

Observable discrepancy in /check.php in Daily Expense Manager 1.0 allows remote attackers to enumerate usernames via POST name input. The endpoint processes the name parameter and exposes a result that distinguishes registered names, but INCIBE does not disclose the exact response difference. No authentication or user interaction is required; the disclosed consequence is identification of valid account names, not account access or data modification.

CVSS severity8.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable discrepancy in /check.php in Daily Expense Manager 1.0 allows remote attackers to enumerate usernames via POST name input. The endpoint processes the name parameter and exposes a result that distinguishes registered names, but INCIBE does not disclose the exact response difference. No authentication or user interaction is required; the disclosed consequence is identification of valid account names, not account access or data modification.

The record

CVE
CVE-2025-40732
Published
Jun 30, 2025
Updated
Jun 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-203, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7INCIBECVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-203Observable Discrepancy
T1087Account Discovery

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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