# CVE-2023-21853: Missing authorization in Mobile Field Service

> Unauthenticated attackers can modify or delete critical data in Oracle Mobile Field Service via HTTP without authorization.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:** 17 Jan 2023
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-5x38-7r9g-7mr7

## What is CVE-2023-21853?

CVE-2023-21853 is a high-severity missing authorization vulnerability in Oracle Corporation Mobile Field Service, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vulnerability in the Oracle Mobile Field Service product of Oracle E-Business Suite (component: Synchronization).  Supported versions that are affected are 12.2.3-12.2.12. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Mobile Field Service.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle Mobile Field Service accessible data. CVSS 3.1 Base Score 7.5 (Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-21853?

It affects 1 product.


Products: Oracle Mobile Field Service.

## How do I fix CVE-2023-21853?

No fix has been published for CVE-2023-21853 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-21853 being exploited?

There is no known exploitation of CVE-2023-21853 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Mobile Field Service

- [CVE-2017-10413](https://insights.sbomify.com/CVE-2017-10413/): Cross-site scripting in Mobile Field Service (high 8.2)
- [CVE-2025-30744](https://insights.sbomify.com/CVE-2025-30744/): Missing authorization in Oracle Mobile Field Service (high 8.1)
- [CVE-2021-35570](https://insights.sbomify.com/CVE-2021-35570/): Missing authorization in Mobile Field Service (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-21853 and fix it if it is affected.

What it is: CVE-2023-21853 is a high-severity missing authorization vulnerability in Oracle Corporation Mobile Field Service, published on 17 Jan 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-2023-21853 in the wild and no public exploit code.

Affected product: Oracle Corporation Mobile Field Service. 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-2023-21853/ (Markdown: https://insights.sbomify.com/CVE-2023-21853/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-21853
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-21853
- OSV: https://osv.dev/vulnerability/CVE-2023-21853

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-21853/
Summaries are generated and may contain mistakes; the official description above is the record.