Grade disclosure via unchecked student identifier
Published Dec 9, 2024 · Updated Dec 9, 2024
Authorization bypass in Changeweb Unifiedtransform 2.0 allows remote authenticated users to read other students' grades. MarkController.php's showCourseMark method accepts student_id from the query string and retrieves marks without confirming that the requested student matches the logged-in account. Student-level access and knowledge or guessing of another student's identifier are sufficient; the documented consequence is disclosure of grade data.
Summary
What happened
Authorization bypass in Changeweb Unifiedtransform 2.0 allows remote authenticated users to read other students' grades. MarkController.php's showCourseMark method accepts student_id from the query string and retrieves marks without confirming that the requested student matches the logged-in account. Student-level access and knowledge or guessing of another student's identifier are sufficient; the documented consequence is disclosure of grade data.
The record
- CVE
- CVE-2024-12305
- Published
- Dec 9, 2024
- Updated
- Dec 9, 2024
- Vendor
- Changeweb
- Product
- Unifiedtransform
- Classifications
- CWE-639, T1213
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 9, 2024CVE publishedPublication date reported by the CVE source.
- 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?
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- Affected versionversion=2.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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