# CVE-2020-13890: Cross-site scripting in n/a

> Cross-site scripting vulnerability in the Neon theme for Bootstrap allows attackers to inject malicious scripts via the Add Task Input operation.

- **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:** 6 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-h5pw-7qvg-2fpq

## What is CVE-2020-13890?

CVE-2020-13890 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Jun 2020. 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 Neon theme 2.0 before 2020-06-03 for Bootstrap allows XSS via an Add Task Input operation in a dashboard.

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

## Which versions are affected by CVE-2020-13890?

It affects 1 product.


Products: Laborator Neon.

## How do I fix CVE-2020-13890?

No fix has been published for CVE-2020-13890 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-13890 being exploited?

There is no known exploitation of CVE-2020-13890 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2019-20141](https://insights.sbomify.com/CVE-2019-20141/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2020-23576](https://insights.sbomify.com/CVE-2020-23576/): Cross-site scripting in n/a (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-13890 and fix it if it is affected.

What it is: CVE-2020-13890 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Jun 2020. 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-2020-13890 in the wild and no public exploit code.

Affected product: n/a. 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-2020-13890/ (Markdown: https://insights.sbomify.com/CVE-2020-13890/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-13890
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-13890
- OSV: https://osv.dev/vulnerability/CVE-2020-13890

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-13890/
Summaries are generated and may contain mistakes; the official description above is the record.