# CVE-2023-4550: Unauthenticated Arbitrary File Read

> Unauthenticated attackers can read arbitrary files on the server hosting OpenText AppBuilder via improper input validation.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jan 2024
- **Updated:** 12 Nov 2024
- **Also known as:** GHSA-crgw-m82j-jv5c

## What is CVE-2023-4550?

CVE-2023-4550 is a high-severity path traversal vulnerability in OpenText AppBuilder, published on 29 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Input Validation, Files or Directories Accessible to External Parties vulnerability in OpenText AppBuilder on Windows, Linux allows Probe System Files.

An unauthenticated or authenticated user can abuse a page of AppBuilder to read arbitrary files on the server on which it is hosted. 

This issue affects AppBuilder: from 21.2 before 23.2.

Weakness: CWE-552 (Files or Directories Accessible to External Parties), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-4550?

It affects 1 product.


Products: Opentext Appbuilder.

## How do I fix CVE-2023-4550?

No fix has been published for CVE-2023-4550 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4550 being exploited?

There is no known exploitation of CVE-2023-4550 in the wild and no public exploit code.

## Other vulnerabilities in OpenText AppBuilder

- [CVE-2023-4551](https://insights.sbomify.com/CVE-2023-4551/): Command Injection via Task Scheduler (high 7.2)
- [CVE-2023-4552](https://insights.sbomify.com/CVE-2023-4552/): Java Database Connectivity (JDBC) URL Manipulation (medium 5.5)
- [CVE-2023-4553](https://insights.sbomify.com/CVE-2023-4553/): Unauthenticated Access to AppBuilder Configuration Files (medium 5.3)
- [CVE-2023-4554](https://insights.sbomify.com/CVE-2023-4554/): XML External Entity (XXE) Processing (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4550 and fix it if it is affected.

What it is: CVE-2023-4550 is a high-severity path traversal vulnerability in OpenText AppBuilder, published on 29 Jan 2024. 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-2023-4550 in the wild and no public exploit code.

Affected product: OpenText AppBuilder. 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-2023-4550/ (Markdown: https://insights.sbomify.com/CVE-2023-4550/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4550
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4550
- OSV: https://osv.dev/vulnerability/CVE-2023-4550

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4550/
Summaries are generated and may contain mistakes; the official description above is the record.