# CVE-2021-41161: XSS in csvimport in 3.0.0-beta versions

> Attacker can inject JavaScript into CSV exports via unescaped parameters, potentially executing code in victim's browser.

- **Severity:** Critical 9.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Apr 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-788f-g6g9-f8fc

## What is CVE-2021-41161?

CVE-2021-41161 is a critical cross-site scripting vulnerability in Combodo Itop, published on 21 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Combodo iTop is a web based IT Service Management tool. In versions prior to 3.0.0-beta6 the export CSV page don't properly escape the user supplied parameters, allowing for javascript injection into rendered csv files. Users are advised to upgrade. There are no known workarounds for this issue.

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

## Which versions are affected by CVE-2021-41161?

It affects 1 product.


Products: Combodo Itop.

## How do I fix CVE-2021-41161?

No fix has been published for CVE-2021-41161 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-41161 being exploited?

There is no known exploitation of CVE-2021-41161 in the wild and no public exploit code.

## Other vulnerabilities in Combodo Itop

- [CVE-2023-48710](https://insights.sbomify.com/CVE-2023-48710/): iTop limit pages/exec.php script to PHP files (critical 9.8)
- [CVE-2022-39214](https://insights.sbomify.com/CVE-2022-39214/): Authenticated users of Combodo iTop can take over any account (critical 9.6)
- [CVE-2021-41162](https://insights.sbomify.com/CVE-2021-41162/): Cross-site Scripting in Combodo iTop (critical 9.3)
- [CVE-2025-47773](https://insights.sbomify.com/CVE-2025-47773/): Combodo iTop has XSS vulnerability in /pages/ajax.render.php (high 8.8)
- [CVE-2025-47932](https://insights.sbomify.com/CVE-2025-47932/): Combodo iTop vulnerable to reflected XSS in ajax.render.php render_dashboard (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41161 and fix it if it is affected.

What it is: CVE-2021-41161 is a critical cross-site scripting vulnerability in Combodo Itop, published on 21 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-41161 in the wild and no public exploit code.

Affected product: Combodo Itop. 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-2021-41161/ (Markdown: https://insights.sbomify.com/CVE-2021-41161/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41161
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41161
- OSV: https://osv.dev/vulnerability/CVE-2021-41161

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41161/
Summaries are generated and may contain mistakes; the official description above is the record.