# CVE-2017-15639: XML external entity in n/a

> Attackers can bypass access restrictions and read sensitive data via XML External Entity injection in the draggable feeds feature of Mura CMS.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:** 19 Oct 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-vv97-384q-3f76

## What is CVE-2017-15639?

CVE-2017-15639 is a medium-severity vulnerability in n/a, published on 19 Oct 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

tasks/feed/readRSS.cfm in Mura CMS before 6.2 allows attackers to bypass intended access restrictions by leveraging the "draggable feeds" feature.

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

## Which versions are affected by CVE-2017-15639?

It affects 1 product.


Products: Getmura Mura Cms.

## How do I fix CVE-2017-15639?

No fix has been published for CVE-2017-15639 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-15639 being exploited?

There is no known exploitation of CVE-2017-15639 in the wild and no public exploit code.

Public exploit code:

- Mura CMS < 6.2 - Server-Side Request Forgery / XML External Entity Injection (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-15639 and fix it if it is affected.

What it is: CVE-2017-15639 is a medium-severity vulnerability in n/a, published on 19 Oct 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-15639 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-2017-15639/ (Markdown: https://insights.sbomify.com/CVE-2017-15639/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-15639
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-15639
- OSV: https://osv.dev/vulnerability/CVE-2017-15639

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-15639/
Summaries are generated and may contain mistakes; the official description above is the record.