CVE-2024-12307Network attack vector

Student data modification via unchecked profile updates

Published Dec 9, 2024 · Updated Dec 9, 2024

Improper access control in Changeweb Unifiedtransform 2.0 allows remote authenticated users with teacher accounts to modify student data. UserController.php accepts student profile update requests and writes the selected student's fields without verifying that the authenticated teacher has administrative authority over that record. A teacher session is required, and successful exploitation changes another student's personal information without granting data-reading or service-disruption capabilities.

CVSS severity4.3
Medium
EPSS probability0.24%
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 with teacher accounts to modify student data. UserController.php accepts student profile update requests and writes the selected student's fields without verifying that the authenticated teacher has administrative authority over that record. A teacher session is required, and successful exploitation changes another student's personal information without granting data-reading or service-disruption capabilities.

The record

CVE
CVE-2024-12307
Published
Dec 9, 2024
Updated
Dec 9, 2024
Vendor
Changeweb
Product
Unifiedtransform
Classifications
CWE-284, T1565
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

4.3Switzerland Government Common Vulnerability ProgramCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565Data Manipulation

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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