CVE-2026-4169Network attack vector

Administrator-only script execution via unescaped XML fields

Published Mar 15, 2026 · Updated Mar 15, 2026

Cross-site scripting in TCExam 16.6.0 and earlier allows remote authenticated users to execute script through an XML user export. F_xml_export_users directly concatenates user and group values into XML without F_text_to_xml escaping, permitting injected markup in the generated document. Exploitation requires administrator privileges to create and consume the crafted export, and the vendor disputes its security significance.

CVSS severity4.8
Medium
EPSS probability0.20%
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 16.6.0 and earlier allows remote authenticated users to execute script through an XML user export. F_xml_export_users directly concatenates user and group values into XML without F_text_to_xml escaping, permitting injected markup in the generated document. Exploitation requires administrator privileges to create and consume the crafted export, and the vendor disputes its security significance.

The record

CVE
CVE-2026-4169
Published
Mar 15, 2026
Updated
Mar 15, 2026
Vendor
Tecnick.com LTD
Product
TCExam
Classifications
CWE-79, CWE-94, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 15, 2026Record 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=16.0
  2. Affected versionversion=16.1
  3. Affected versionversion=16.2
  4. Affected versionversion=16.3
  5. Affected versionversion=16.4
  6. Affected versionversion=16.5
  7. Affected versionversion=16.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Tecnick.com LTD · TCExamversion=16.0; version=16.1; version=16.2; version=16.3; version=16.4; version=16.5; version=16.6.0

Published CVSS scores

3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
4.8VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007Command and Scripting Interpreter: JavaScript

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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