CVE-2020-5749Public exploitNetwork attack vector

Stored XSS via unsanitized group name

Published May 7, 2020 · Updated Aug 4, 2024

Cross-site scripting in TCExam 14.2.2 allows remote authenticated users to execute persistent JavaScript by creating a crafted group. The group name is stored without adequate output sanitization and later emitted by tce_edit_module.php, causing script execution when an operator views the group listing. An authenticated attacker must create the group and a privileged operator must browse the affected page; the script can alter actions or access data in that operator's browser context.

CVSS severity3.5
Low
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in TCExam 14.2.2 allows remote authenticated users to execute persistent JavaScript by creating a crafted group. The group name is stored without adequate output sanitization and later emitted by tce_edit_module.php, causing script execution when an operator views the group listing. An authenticated attacker must create the group and a privileged operator must browse the affected page; the script can alter actions or access data in that operator's browser context.

The record

CVE
CVE-2020-5749
Published
May 7, 2020
Updated
Aug 4, 2024
Vendor
Tecnick.com LTD
Product
TCExam
Classifications
CWE-79, T1059.007
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

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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 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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

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Technologies

Your stack

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Your stack

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