# CVE-2019-19456: Cross-site scripting in n/a

> Reflected XSS in the login page allows attackers to execute scripts in user browsers, potentially leading to session hijacking or malicious actions.

- **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:** 18 May 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-3q77-c23g-8p2h

## What is CVE-2019-19456?

CVE-2019-19456 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 May 2020. 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

A Reflected XSS was found in the server selection box inside the login page at: enginemanager/loginfailed.html in Wowza Streaming Engine <= 4.x.x. This issue was resolved in Wowza Streaming Engine 4.8.0.

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

## Which versions are affected by CVE-2019-19456?

It affects 1 product.


Products: Wowza Streaming Engine.

## How do I fix CVE-2019-19456?

No fix has been published for CVE-2019-19456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-19456 being exploited?

There is no known exploitation of CVE-2019-19456 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-7047](https://insights.sbomify.com/CVE-2018-7047/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2024-52052](https://insights.sbomify.com/CVE-2024-52052/): Stream Target Remote Code Execution in Wowza Streaming Engine (critical 9.4)
- [CVE-2018-19365](https://insights.sbomify.com/CVE-2018-19365/): Path traversal in n/a (critical 9.1)
- [CVE-2020-9004](https://insights.sbomify.com/CVE-2020-9004/): Auth bypass in n/a (high 8.8)
- [CVE-2016-20034](https://insights.sbomify.com/CVE-2016-20034/): Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-19456 and fix it if it is affected.

What it is: CVE-2019-19456 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-19456 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-2019-19456/ (Markdown: https://insights.sbomify.com/CVE-2019-19456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19456
- OSV: https://osv.dev/vulnerability/CVE-2019-19456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-19456/
Summaries are generated and may contain mistakes; the official description above is the record.