# CVE-2023-40600: WordPress EWWW Image Optimizer Plugin <= 7.2.0 is vulnerable to Sensitive Data Exposure

> Attackers can access sensitive information via debug logs if enabled, affecting WordPress sites using the EWWW Image Optimizer plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 30 Nov 2023
- **Updated:** 29 Apr 2026
- **Also known as:** GHSA-9vqm-pq4q-h6cw

## What is CVE-2023-40600?

CVE-2023-40600 is a medium-severity vulnerability in Exactly WWW EWWW Image Optimizer, published on 30 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Exactly WWW EWWW Image Optimizer. It works only when debug.log is turned on.This issue affects EWWW Image Optimizer: from n/a through 7.2.0.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2023-40600?

It affects 1 product.


Products: Ewww Image Optimizer.

## How do I fix CVE-2023-40600?

No fix has been published for CVE-2023-40600 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-40600 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40600 exists.

Public exploit code:

- EWWW Image Optimizer <= 7.2.0 - Unauthenticated Sensitive Information Exposure via Debug Log (github_poc): https://github.com/RandomRobbieBF/CVE-2023-40600
- EWWW Image Optimizer <= 7.2.0 - Unauthenticated Information Disclosure (nuclei): http/cves/2023/CVE-2023-40600.yaml

## Other vulnerabilities in Exactly WWW EWWW Image Optimizer

- [CVE-2016-20010](https://insights.sbomify.com/CVE-2016-20010/): Command injection in n/a (critical 10.0)
- [CVE-2020-36750](https://insights.sbomify.com/CVE-2020-36750/): EWWW Image Optimizer <= 5.8.1 - Cross-Site Request Forgery Bypass (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-40600 and fix it if it is affected.

What it is: CVE-2023-40600 is a medium-severity vulnerability in Exactly WWW EWWW Image Optimizer, published on 30 Nov 2023. 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-2023-40600 exists.

Affected product: Exactly WWW EWWW Image Optimizer. 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-2023-40600/ (Markdown: https://insights.sbomify.com/CVE-2023-40600/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-40600
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-40600
- OSV: https://osv.dev/vulnerability/CVE-2023-40600

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-40600/
Summaries are generated and may contain mistakes; the official description above is the record.