# CVE-2017-9355: XML external entity in n/a

> Remote attackers can exploit an XML external entity vulnerability in the playlist import feature to perform server-side request forgery attacks.

- **Severity:** High 7.4 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/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:** 7 Jun 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-cccx-rcqv-gwfj

## What is CVE-2017-9355?

CVE-2017-9355 is a high-severity vulnerability in n/a, published on 7 Jun 2017. 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

XML external entity (XXE) vulnerability in the import playlist feature in Subsonic 6.1.1 might allow remote attackers to conduct server-side request forgery (SSRF) attacks via a crafted XSPF playlist file.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2017-9355?

It affects 1 product.


Products: Subsonic Subsonic.

## How do I fix CVE-2017-9355?

No fix has been published for CVE-2017-9355 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9355 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-9355 exists.

Public exploit code:

- Subsonic 6.1.1 - XML External Entity Injection (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2017-9414](https://insights.sbomify.com/CVE-2017-9414/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2017-9413](https://insights.sbomify.com/CVE-2017-9413/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2018-20228](https://insights.sbomify.com/CVE-2018-20228/): Server-side request forgery in n/a (high 8.0)
- [CVE-2017-9415](https://insights.sbomify.com/CVE-2017-9415/): Cross-site request forgery in n/a (high 7.5)
- [CVE-2018-6014](https://insights.sbomify.com/CVE-2018-6014/): Information disclosure in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-9355 and fix it if it is affected.

What it is: CVE-2017-9355 is a high-severity vulnerability in n/a, published on 7 Jun 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-9355 exists.

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-2017-9355/ (Markdown: https://insights.sbomify.com/CVE-2017-9355/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9355
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9355
- OSV: https://osv.dev/vulnerability/CVE-2017-9355

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-9355/
Summaries are generated and may contain mistakes; the official description above is the record.