# CVE-2020-23992: Cross-site scripting in n/a

> Remote attackers can execute arbitrary code via XSS in Nagios XI by exploiting the returnUrl parameter in crafted GET requests.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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:** 22 Aug 2023
- **Updated:** 3 Oct 2024
- **Also known as:** GHSA-pchv-f3w5-gmh6

## What is CVE-2020-23992?

CVE-2020-23992 is a medium-severity cross-site scripting vulnerability in Nagios Nagios Xi, published on 22 Aug 2023. 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

Cross Site Scripting (XSS) in Nagios XI 5.7.1 allows remote attackers to run arbitrary code via returnUrl parameter in a crafted GET request.

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

## Which versions are affected by CVE-2020-23992?

It affects 1 product.


Products: Nagios Nagios Xi.

## How do I fix CVE-2020-23992?

No fix has been published for CVE-2020-23992 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-23992 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-23992 exists.

## Other vulnerabilities in Nagios Nagios Xi

- [CVE-2021-25296](https://insights.sbomify.com/CVE-2021-25296/): Nagios XI OS Command Injection (high 8.8, exploited in the wild)
- [CVE-2021-25297](https://insights.sbomify.com/CVE-2021-25297/): Nagios XI OS Command Injection (high 8.8, exploited in the wild)
- [CVE-2021-25298](https://insights.sbomify.com/CVE-2021-25298/): Nagios XI OS Command Injection (high 8.8, exploited in the wild)
- [CVE-2019-15949](https://insights.sbomify.com/CVE-2019-15949/): Nagios XI Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2024-24401](https://insights.sbomify.com/CVE-2024-24401/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-23992 and fix it if it is affected.

What it is: CVE-2020-23992 is a medium-severity cross-site scripting vulnerability in Nagios Nagios Xi, published on 22 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-23992 exists.

Affected product: Nagios Nagios Xi. 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-2020-23992/ (Markdown: https://insights.sbomify.com/CVE-2020-23992/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-23992
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-23992
- OSV: https://osv.dev/vulnerability/CVE-2020-23992

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-23992/
Summaries are generated and may contain mistakes; the official description above is the record.