# CVE-2023-7327: Ozeki SMS Gateway <= 10.3.208 Unauthenticated Arbitrary File Read

> Unauthenticated attackers can read arbitrary files from the server filesystem via path traversal in Ozeki SMS Gateway.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Nov 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-5r7g-25f3-63r9

## What is CVE-2023-7327?

CVE-2023-7327 is a high-severity path traversal vulnerability in Ozeki SMS Gateway, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Ozeki SMS Gateway versions up to and including 10.3.208 contain a path traversal vulnerability. Successful exploitation allows an unauthenticated attacker to use URL-encoded traversal sequences to read arbitrary files from the underlying filesystem with the privileges of the gateway service, leading to disclosure of sensitive information.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2023-7327?


## How do I fix CVE-2023-7327?

No fix has been published for CVE-2023-7327 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-7327 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7327 exists.

Public exploit code:

- Ozeki 10 SMS Gateway 10.3.208 - Arbitrary File Read (nuclei): http/cves/2023/CVE-2023-7327.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-7327 and fix it if it is affected.

What it is: CVE-2023-7327 is a high-severity path traversal vulnerability in Ozeki SMS Gateway, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7327 exists.

Affected product: Ozeki SMS Gateway. 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-2023-7327/ (Markdown: https://insights.sbomify.com/CVE-2023-7327/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-7327
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-7327
- OSV: https://osv.dev/vulnerability/CVE-2023-7327

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-7327/
Summaries are generated and may contain mistakes; the official description above is the record.