# CVE-2020-19202: Cross-site scripting in n/a

> Authenticated users can inject malicious scripts into the Captive Portal login page title, potentially compromising other users' sessions.

- **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:** 17 Jun 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v8p8-4vxj-fh58

## What is CVE-2020-19202?

CVE-2020-19202 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An authenticated Stored XSS (Cross-site Scripting) exists in the "captive.cgi" Captive Portal via the "Title of Login Page" text box or "TITLE" parameter in IPFire 2.21 (x86_64) - Core Update 130. It allows an authenticated WebGUI user with privileges to execute Stored Cross-site Scripting in the Captive Portal page.

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

## Which versions are affected by CVE-2020-19202?

It affects 1 product.


Products: Ipfire Ipfire.

## How do I fix CVE-2020-19202?

No fix has been published for CVE-2020-19202 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-19202 being exploited?

There is no known exploitation of CVE-2020-19202 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-33393](https://insights.sbomify.com/CVE-2021-33393/): Privilege escalation in n/a (high 8.8)
- [CVE-2018-16232](https://insights.sbomify.com/CVE-2018-16232/): Command injection in n/a (high 8.8)
- [CVE-2017-9757](https://insights.sbomify.com/CVE-2017-9757/): Command injection in n/a (high 8.8)
- [CVE-2025-34311](https://insights.sbomify.com/CVE-2025-34311/): IPFire < v2.29 Command Injection via Proxy Report Creation (high 8.7)
- [CVE-2025-34312](https://insights.sbomify.com/CVE-2025-34312/): IPFire < v2.29 Command Injection via URL Filter Blacklist (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-19202 and fix it if it is affected.

What it is: CVE-2020-19202 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Jun 2021. 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-2020-19202 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-2020-19202/ (Markdown: https://insights.sbomify.com/CVE-2020-19202/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-19202
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-19202
- OSV: https://osv.dev/vulnerability/CVE-2020-19202

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-19202/
Summaries are generated and may contain mistakes; the official description above is the record.