# CVE-2020-14166: Cross-site scripting in Jira Service Desk Server and Data Center

> Remote attackers with project admin privileges can inject arbitrary HTML or JavaScript via file upload in Jira Service Desk.

- **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:** No
- **Published:** 1 Jul 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-r66f-f7w5-7r65

## What is CVE-2020-14166?

CVE-2020-14166 is a medium-severity cross-site scripting vulnerability in Atlassian Jira Service Desk Server and Data Center, published on 1 Jul 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The /servicedesk/customer/portals resource in Jira Service Desk Server and Data Center before version 4.10.0 allows remote attackers with project administrator privileges to inject arbitrary HTML or JavaScript names via an Cross Site Scripting (XSS) vulnerability by uploading a html file.

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

## Which versions are affected by CVE-2020-14166?

It affects 1 product.


Products: Atlassian Jira Service Desk.

## How do I fix CVE-2020-14166?

No fix has been published for CVE-2020-14166 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-14166 being exploited?

There is no known exploitation of CVE-2020-14166 in the wild and no public exploit code.

Public exploit code:

- Atlassian Jira Service Desk 4.9.1 - Unrestricted File Upload to XSS (exploitdb)

## Other vulnerabilities in Atlassian Jira Service Desk Server and Data Center

- [CVE-2019-15004](https://insights.sbomify.com/CVE-2019-15004/): Path traversal in Jira Service Desk Data Center (high 7.5)
- [CVE-2019-14994](https://insights.sbomify.com/CVE-2019-14994/): Path traversal in Jira Service Desk Data Center (high 7.5)
- [CVE-2021-39115](https://insights.sbomify.com/CVE-2021-39115/): Code injection in Jira Service Desk Data Center (high 7.2)
- [CVE-2021-43959](https://insights.sbomify.com/CVE-2021-43959/): Server-side request forgery in Jira Service Management Data Center (medium 5.7)
- [CVE-2019-15003](https://insights.sbomify.com/CVE-2019-15003/): Missing authorization in Jira Service Desk Data Center (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14166 and fix it if it is affected.

What it is: CVE-2020-14166 is a medium-severity cross-site scripting vulnerability in Atlassian Jira Service Desk Server and Data Center, published on 1 Jul 2020. 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-2020-14166 in the wild and no public exploit code.

Affected product: Atlassian Jira Service Desk Server and Data Center. 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-2020-14166/ (Markdown: https://insights.sbomify.com/CVE-2020-14166/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14166
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14166
- OSV: https://osv.dev/vulnerability/CVE-2020-14166

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-14166/
Summaries are generated and may contain mistakes; the official description above is the record.