# CVE-2019-0340: XML external entity in SAP Enable Now

> An attacker can exploit an unhardened XML parser in SAP Enable Now to read local files via XML External Entity injection.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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:** Not needed
- **Fix available:** No
- **Published:** 14 Aug 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-w375-34xx-jhpq

## What is CVE-2019-0340?

CVE-2019-0340 is a medium-severity vulnerability in SAP Enable Now, published on 14 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The XML parser, which is being used by SAP Enable Now, before version 1902, has not been hardened correctly, leading to Missing XML Validation vulnerability. This issue affects the file upload at multiple locations. An attacker can read local XXE files.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2019-0340?

It affects 1 product.


Products: Sap Enable Now.

## How do I fix CVE-2019-0340?

No fix has been published for CVE-2019-0340 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-0340 being exploited?

There is no known exploitation of CVE-2019-0340 in the wild and no public exploit code.

## Other vulnerabilities in SAP Enable Now

- [CVE-2019-0403](https://insights.sbomify.com/CVE-2019-0403/): Command injection in SAP Enable Now (critical 9.8)
- [CVE-2019-0341](https://insights.sbomify.com/CVE-2019-0341/): Cross-site scripting in SAP Enable Now (high 8.8)
- [CVE-2019-0404](https://insights.sbomify.com/CVE-2019-0404/): Information disclosure in SAP Enable Now (high 7.5)
- [CVE-2019-0405](https://insights.sbomify.com/CVE-2019-0405/): Information disclosure in SAP Enable Now (high 7.5)
- [CVE-2019-0385](https://insights.sbomify.com/CVE-2019-0385/): Cross-site scripting in SAP Enable Now (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0340 and fix it if it is affected.

What it is: CVE-2019-0340 is a medium-severity vulnerability in SAP Enable Now, published on 14 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-0340 in the wild and no public exploit code.

Affected product: SAP Enable Now. 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-2019-0340/ (Markdown: https://insights.sbomify.com/CVE-2019-0340/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0340
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0340
- OSV: https://osv.dev/vulnerability/CVE-2019-0340

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-0340/
Summaries are generated and may contain mistakes; the official description above is the record.