# CVE-2021-41952: Cross-site Scripting in Zenario CMS

> Attackers can execute arbitrary scripts via malicious SVG uploads in Zenario CMS, leading to cookie theft and account takeover.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 14 Mar 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-x8wj-cqmp-3wmm

## What is CVE-2021-41952?

CVE-2021-41952 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Mar 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Zenario CMS 9.0.54156 is vulnerable to Cross Site Scripting (XSS) via upload file to *.SVG. An attacker can send malicious files to victims and steals victim's cookie leads to account takeover. The person viewing the image of a contact can be victim of XSS.

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

## Which versions are affected by CVE-2021-41952?

2 open source packages ship an affected version, including tribalsystems/zenario. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `tribalsystems/zenario` | Packagist | All versions | 9.0.55143 |
| `tribalsystems/zenario` | Packagist | All versions | 9.0.55143 |

Products: Tribalsystems Zenario.

## How do I fix CVE-2021-41952?

Upgrade tribalsystems/zenario to 9.0.55143 or later.

## Is CVE-2021-41952 being exploited?

There is no known exploitation of CVE-2021-41952 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-44136](https://insights.sbomify.com/CVE-2022-44136/): Zenario CMS is vulnerable to Remote Code Execution (RCE). (critical 9.8)
- [CVE-2021-26830](https://insights.sbomify.com/CVE-2021-26830/): SQL Injection in tribalsystems/zenario (critical 9.1)
- [CVE-2018-18420](https://insights.sbomify.com/CVE-2018-18420/): Zenario CMS vulnerable to CSRF (high 8.8)
- [CVE-2018-5960](https://insights.sbomify.com/CVE-2018-5960/): SQL Injection in Zenario 7.1-7.6 (high 8.8)
- [CVE-2021-42171](https://insights.sbomify.com/CVE-2021-42171/): Unrestricted Upload of File with Dangerous Type in Zenario CMS (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41952 and fix it if it is affected.

What it is: CVE-2021-41952 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Mar 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-41952 in the wild and no public exploit code.

Affected packages and fixed versions:
- tribalsystems/zenario (Packagist): affected all versions; fixed in 9.0.55143
- tribalsystems/zenario (Packagist): affected all versions; fixed in 9.0.55143

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-2021-41952/ (Markdown: https://insights.sbomify.com/CVE-2021-41952/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41952
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41952
- OSV: https://osv.dev/vulnerability/CVE-2021-41952

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41952/
Summaries are generated and may contain mistakes; the official description above is the record.