# CVE-2023-49656: Jenkins MATLAB Plugin XML External Entity vulnerability

> An attacker can exploit XML external entity vulnerabilities in the Jenkins MATLAB Plugin to read sensitive files or cause denial of service.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 Nov 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-82q9-88m2-4v68

## What is CVE-2023-49656?

CVE-2023-49656 is a critical vulnerability in Jenkins MATLAB Plugin, published on 29 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Jenkins MATLAB Plugin 2.11.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

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

## Which versions are affected by CVE-2023-49656?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:matlab. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:matlab` | Maven | All versions | 2.11.1 |
| `org.jenkins-ci.plugins:matlab` | Maven | All versions | 2.11.1 |

Products: Jenkins Matlab.

## How do I fix CVE-2023-49656?

Upgrade org.jenkins-ci.plugins:matlab to 2.11.1 or later.

## Is CVE-2023-49656 being exploited?

There is no known exploitation of CVE-2023-49656 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins MATLAB Plugin

- [CVE-2023-49654](https://insights.sbomify.com/CVE-2023-49654/): Jenkins MATLAB Plugin missing permission checks (critical 9.8)
- [CVE-2023-49655](https://insights.sbomify.com/CVE-2023-49655/): Jenkins MATLAB Plugin cross-site request forgery vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-49656 and fix it if it is affected.

What it is: CVE-2023-49656 is a critical vulnerability in Jenkins MATLAB Plugin, published on 29 Nov 2023. 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-2023-49656 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:matlab (Maven): affected all versions; fixed in 2.11.1
- org.jenkins-ci.plugins:matlab (Maven): affected all versions; fixed in 2.11.1

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-2023-49656/ (Markdown: https://insights.sbomify.com/CVE-2023-49656/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-49656
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-49656
- OSV: https://osv.dev/vulnerability/CVE-2023-49656

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-49656/
Summaries are generated and may contain mistakes; the official description above is the record.