# CVE-2020-6313: Cross-site scripting in SAP NetWeaver AS JAVA (XML Forms)

> Authenticated users can inject malicious JavaScript into SAP NetWeaver XML Forms, leading to stored XSS attacks against victims.

- **Severity:** Medium 5.4 (`CVSS:3.0/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:** 9 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-4xqv-wh6m-q95v

## What is CVE-2020-6313?

CVE-2020-6313 is a medium-severity cross-site scripting vulnerability in Sap Netweaver Application Server Java, published on 9 Sep 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

SAP NetWeaver Application Server JAVA(XML Forms) versions 7.30, 7.31, 7.40, 7.50 does not sufficiently encode user controlled inputs, which allows an authenticated User with special roles to store malicious content, that when accessed by a victim, can perform malicious actions by executing JavaScript, leading to Stored Cross-Site Scripting.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2020-6313?

It affects 1 product.


Products: Sap Netweaver Application Server Java.

## How do I fix CVE-2020-6313?

No fix has been published for CVE-2020-6313 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6313 being exploited?

There is no known exploitation of CVE-2020-6313 in the wild and no public exploit code.

## Other vulnerabilities in Sap Netweaver Application Server Java

- [CVE-2020-6287](https://insights.sbomify.com/CVE-2020-6287/): SAP NetWeaver Missing Authentication for Critical Function (critical 10.0, exploited in the wild)
- [CVE-2010-5326](https://insights.sbomify.com/CVE-2010-5326/): SAP NetWeaver Remote Code Execution (critical 10.0, exploited in the wild)
- [CVE-2016-2386](https://insights.sbomify.com/CVE-2016-2386/): SAP NetWeaver SQL Injection (critical 9.8, exploited in the wild)
- [CVE-2017-12637](https://insights.sbomify.com/CVE-2017-12637/): SAP NetWeaver Directory Traversal (high 7.5, exploited in the wild)
- [CVE-2016-3976](https://insights.sbomify.com/CVE-2016-3976/): SAP NetWeaver Directory Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6313 and fix it if it is affected.

What it is: CVE-2020-6313 is a medium-severity cross-site scripting vulnerability in Sap Netweaver Application Server Java, published on 9 Sep 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-2020-6313 in the wild and no public exploit code.

Affected product: Sap Netweaver Application Server Java. 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-2020-6313/ (Markdown: https://insights.sbomify.com/CVE-2020-6313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6313
- OSV: https://osv.dev/vulnerability/CVE-2020-6313

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-6313/
Summaries are generated and may contain mistakes; the official description above is the record.