CVE-2020-5743Public exploitNetwork attack vector

Test metadata disclosure via unchecked test identifier

Published May 7, 2020 · Updated Aug 4, 2024

Improper access control in TCExam 14.2.2 allows remote authenticated users to read unauthorized test metadata through its web interface. The public/code/tce_popup_test_info.php endpoint accepts a user-controlled testid GET parameter and returns the selected test record without verifying authorization for that test. Any student account at privilege level 1 or higher can expose scheduling, duration, scoring, and passing-threshold metadata for otherwise inaccessible tests.

CVSS severity4.3
Medium
EPSS probability0.82%
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 TCExam 14.2.2 allows remote authenticated users to read unauthorized test metadata through its web interface. The public/code/tce_popup_test_info.php endpoint accepts a user-controlled testid GET parameter and returns the selected test record without verifying authorization for that test. Any student account at privilege level 1 or higher can expose scheduling, duration, scoring, and passing-threshold metadata for otherwise inaccessible tests.

The record

CVE
CVE-2020-5743
Published
May 7, 2020
Updated
Aug 4, 2024
Vendor
Tecnick.com LTD
Product
TCExam
Classifications
CWE-639
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=14.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tecnick.com LTD · TCExamversion=14.2.2

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3OSVCVSS: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

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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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key

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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