CVE-2025-12492Network attack vectorHinoki check available

Unauthenticated account disclosure via predictable directory tokens

Published Dec 20, 2025 · Updated Dec 20, 2025

Sensitive information exposure in Ultimate Member 2.11.0 and earlier allows remote attackers to read member account data through AJAX requests. The ajax_get_members handler accepts a directory_id protected only by a predictable five-hex-character MD5-derived token and does not adequately authorize unauthenticated requests. No account is required; enumerating directory identifiers or the 16^5 token space exposes usernames, display names, roles, profile URLs, and user IDs.

CVSS severity5.3
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Sensitive information exposure in Ultimate Member 2.11.0 and earlier allows remote attackers to read member account data through AJAX requests. The ajax_get_members handler accepts a directory_id protected only by a predictable five-hex-character MD5-derived token and does not adequately authorize unauthenticated requests. No account is required; enumerating directory identifiers or the 16^5 token space exposes usernames, display names, roles, profile URLs, and user IDs.

The record

CVE
CVE-2025-12492
Published
Dec 20, 2025
Updated
Dec 20, 2025
Vendor
Ultimate Member Group Ltd
Product
Ultimate Member
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 20, 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=* <=2.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ultimate Member Group Ltd · Ultimate Memberversion=* <=2.11.0

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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