CVE-2021-4046Network attack vector

Stored script execution via unsanitized name parameters

Published Feb 11, 2022 · Updated Sep 17, 2024

Stored cross-site scripting in TCMAN GIM 8.01 allows remote authenticated users to execute script in another user's browser. The m_txtNom and m_txtCognoms parameters persist attacker-controlled content that GIM later renders without neutralizing active markup or script. Exploitation requires low-privileged access and a victim to view the stored content, enabling browser hijacking or theft of browser-accessible sensitive data.

CVSS severity5.4
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in TCMAN GIM 8.01 allows remote authenticated users to execute script in another user's browser. The m_txtNom and m_txtCognoms parameters persist attacker-controlled content that GIM later renders without neutralizing active markup or script. Exploitation requires low-privileged access and a victim to view the stored content, enabling browser hijacking or theft of browser-accessible sensitive data.

The record

CVE
CVE-2021-4046
Published
Feb 11, 2022
Updated
Sep 17, 2024
Vendor
TCMAN
Product
GIM
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=8.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TCMAN · GIMversion=8.01

Published CVSS scores

3.5National Institute of Standards and TechnologyAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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