# CVE-2023-6164: MainWP Dashboard <= 4.5.1.2 - Authenticated(Administrator+) CSS Injection

> Administrators can inject arbitrary CSS via the newColor parameter, potentially leading to script execution or security bypasses in the MainWP Dashboard plugin.

- **Severity:** Low 2.2 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Nov 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-666g-9c82-3mm3

## What is CVE-2023-6164?

CVE-2023-6164 is a low-severity cross-site scripting vulnerability in MainWP Dashboard: Self-hosted WordPress Management for Agencies, published on 22 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The MainWP Dashboard  – WordPress Manager for Multiple Websites Maintenance plugin for WordPress is vulnerable to CSS Injection via the ‘newColor’ parameter in all versions up to, and including, 4.5.1.2 due to insufficient input sanitization. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary CSS values into the site tags.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2023-6164?

It affects 1 product.


Products: Mainwp Mainwp.

## How do I fix CVE-2023-6164?

No fix has been published for CVE-2023-6164 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6164 being exploited?

There is no known exploitation of CVE-2023-6164 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6164 and fix it if it is affected.

What it is: CVE-2023-6164 is a low-severity cross-site scripting vulnerability in MainWP Dashboard: Self-hosted WordPress Management for Agencies, published on 22 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-6164 in the wild and no public exploit code.

Affected product: MainWP Dashboard: Self-hosted WordPress Management for Agencies. 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-2023-6164/ (Markdown: https://insights.sbomify.com/CVE-2023-6164/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6164
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6164
- OSV: https://osv.dev/vulnerability/CVE-2023-6164

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6164/
Summaries are generated and may contain mistakes; the official description above is the record.