# CVE-2021-4046: TCMAN GIM Cross-Site Scripting (XSS)

> Persistent XSS in TCMAN GIM allows attackers to hijack browsers or steal sensitive data via vulnerable input parameters.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Feb 2022
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-6rhh-8mrh-6xqv

## What is CVE-2021-4046?

CVE-2021-4046 is a medium-severity cross-site scripting vulnerability in TCMAN GIM, published on 11 Feb 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The m_txtNom y m_txtCognoms parameters in TCMAN GIM v8.01 allow an attacker to perform persistent XSS attacks. This vulnerability could be used to carry out a number of browser-based attacks including browser hijacking or theft of sensitive data.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2021-4046?

It affects 1 product.


Products: Tcman Gim.

## How do I fix CVE-2021-4046?

No fix has been published for CVE-2021-4046 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-4046 being exploited?

There is no known exploitation of CVE-2021-4046 in the wild and no public exploit code.

## Other vulnerabilities in TCMAN GIM

- [CVE-2021-40850](https://insights.sbomify.com/CVE-2021-40850/): TCMAN GIM SQL injection vulnerability (critical 10.0)
- [CVE-2022-36276](https://insights.sbomify.com/CVE-2022-36276/): SQL injection vulnerability in TCMAN GIM (critical 9.9)
- [CVE-2025-40664](https://insights.sbomify.com/CVE-2025-40664/): Missing authentication vulnerability in TCMAN GIM v11 (critical 9.3)
- [CVE-2025-40620](https://insights.sbomify.com/CVE-2025-40620/): Multiple vulnerabilities in TCMAN's GIM (critical 9.3)
- [CVE-2025-40621](https://insights.sbomify.com/CVE-2025-40621/): Multiple vulnerabilities in TCMAN's GIM (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-4046 and fix it if it is affected.

What it is: CVE-2021-4046 is a medium-severity cross-site scripting vulnerability in TCMAN GIM, published on 11 Feb 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-4046 in the wild and no public exploit code.

Affected product: TCMAN GIM. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-4046/ (Markdown: https://insights.sbomify.com/CVE-2021-4046/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-4046
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-4046
- OSV: https://osv.dev/vulnerability/CVE-2021-4046

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-4046/
Summaries are generated and may contain mistakes; the official description above is the record.