# CVE-2020-6293: File upload in SAP NetWeaver (Knowledge Management)

> Unauthenticated attackers can upload malicious files and access or modify existing files in SAP NetWeaver Knowledge Management.

- **Severity:** High 7.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g48c-grh6-c63v

## What is CVE-2020-6293?

CVE-2020-6293 is a high-severity vulnerability in SAP NetWeaver (Knowledge Management), published on 12 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SAP NetWeaver (Knowledge Management), versions - 7.30, 7.31, 7.40, 7.50, allows an unauthenticated attacker to upload a malicious file and also to access, modify or make unavailable existing files but the impact is limited to the files themselves and is restricted by other policies such as access control lists and other upload file size restrictions, leading to Unrestricted File Upload.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2020-6293?

It affects 1 product.


Products: Sap Netweaver Knowledge Management.

## How do I fix CVE-2020-6293?

No fix has been published for CVE-2020-6293 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6293 being exploited?

There is no known exploitation of CVE-2020-6293 in the wild and no public exploit code.

## Other vulnerabilities in SAP NetWeaver (Knowledge Management)

- [CVE-2020-6284](https://insights.sbomify.com/CVE-2020-6284/): Cross-site scripting in SAP NetWeaver (Knowledge Management) (critical 9.0)
- [CVE-2021-21488](https://insights.sbomify.com/CVE-2021-21488/): Deserialization in SAP NetWeaver Knowledge Management (medium 6.5)
- [CVE-2021-33707](https://insights.sbomify.com/CVE-2021-33707/): Open redirect in SAP NetWeaver (Knowledge Management) (medium 6.1)
- [CVE-2020-6193](https://insights.sbomify.com/CVE-2020-6193/): Cross-site scripting in SAP NetWeaver (Knowledge Management ICE Service) (medium 6.1)
- [CVE-2020-6326](https://insights.sbomify.com/CVE-2020-6326/): Cross-site scripting in SAP NetWeaver (Knowledge Management) (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6293 and fix it if it is affected.

What it is: CVE-2020-6293 is a high-severity vulnerability in SAP NetWeaver (Knowledge Management), published on 12 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-6293 in the wild and no public exploit code.

Affected product: SAP NetWeaver (Knowledge Management). 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-2020-6293/ (Markdown: https://insights.sbomify.com/CVE-2020-6293/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6293
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6293
- OSV: https://osv.dev/vulnerability/CVE-2020-6293

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6293/
Summaries are generated and may contain mistakes; the official description above is the record.