CVE-2024-12306Public exploitNetwork attack vector

Authenticated personal-data disclosure via missing authorization checks

Published Dec 9, 2024 · Updated Dec 9, 2024

Improper access control in Changeweb Unifiedtransform 2.0 allows remote authenticated users to read student and teacher personal data. UserController list endpoints return records without function-level authorization, while profile endpoints accept identifiers without ownership checks. A student account is sufficient; the reported consequence is read-only disclosure of other users' personal information.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Changeweb Unifiedtransform 2.0 allows remote authenticated users to read student and teacher personal data. UserController list endpoints return records without function-level authorization, while profile endpoints accept identifiers without ownership checks. A student account is sufficient; the reported consequence is read-only disclosure of other users' personal information.

The record

CVE
CVE-2024-12306
Published
Dec 9, 2024
Updated
Dec 9, 2024
Vendor
Changeweb
Product
Unifiedtransform
Classifications
CWE-284, CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 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=2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Changeweb · Unifiedtransformversion=2.0

Published CVSS scores

4.3NCSC.chCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

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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