# CVE-2023-6699: WP Compress – Image Optimizer [All-In-One] <= 6.10.33 - Unauthenticated Directory Traversal via css

> Unauthenticated attackers can read arbitrary files on the server via directory traversal in the WP Compress plugin.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 11 Jan 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-8frc-4g87-v5h6

## What is CVE-2023-6699?

CVE-2023-6699 is a critical path traversal vulnerability in aresit WP Compress – Instant Performance & Speed Optimization, published on 11 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WP Compress – Image Optimizer [All-In-One] plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.10.33 via the css parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), CWE-24 (Path Traversal: '../filedir')

## Which versions are affected by CVE-2023-6699?

It affects 1 product.


Products: Wpcompress Wp Compress.

## How do I fix CVE-2023-6699?

No fix has been published for CVE-2023-6699 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6699 being exploited?

There is no known exploitation of CVE-2023-6699 in the wild and no public exploit code.

## Other vulnerabilities in aresit WP Compress – Instant Performance & Speed Optimization

- [CVE-2025-2110](https://insights.sbomify.com/CVE-2025-2110/): WP Compress <= 6.30.15 - Authenticated (Subscriber+) Missing Authorization via Multiple Functions (high 8.8)
- [CVE-2024-1934](https://insights.sbomify.com/CVE-2024-1934/): WP Compress – Image Optimizer <= 6.11.08 - Missing Authorization to Unauthenticated CDN Modification (high 7.5)
- [CVE-2025-47546](https://insights.sbomify.com/CVE-2025-47546/): WordPress WP Compress plugin <= 6.30.30 - Cross Site Request Forgery (CSRF) Vulnerability (high 7.1)
- [CVE-2024-47384](https://insights.sbomify.com/CVE-2024-47384/): WordPress WP Compress plugin <= 6.20.13 - Reflected Cross Site Scripting (XSS) vulnerability (high 7.1)
- [CVE-2024-4445](https://insights.sbomify.com/CVE-2024-4445/): WP Compress – Image Optimizer [All-In-One] <= 6.20.01 - Missing Authorization (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6699 and fix it if it is affected.

What it is: CVE-2023-6699 is a critical path traversal vulnerability in aresit WP Compress – Instant Performance & Speed Optimization, published on 11 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-2023-6699 in the wild and no public exploit code.

Affected product: aresit WP Compress – Instant Performance & Speed Optimization. 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-2023-6699/ (Markdown: https://insights.sbomify.com/CVE-2023-6699/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6699
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6699
- OSV: https://osv.dev/vulnerability/CVE-2023-6699

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6699/
Summaries are generated and may contain mistakes; the official description above is the record.