# CVE-2023-2578: Buy Me a Coffee < 3.7 - Admin+ Stored XSS

> Admin users can inject malicious scripts via unsanitized settings in the Buy Me a Coffee plugin, bypassing unfiltered_html restrictions in multisite setups.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Jul 2023
- **Updated:** 12 Nov 2024
- **Also known as:** GHSA-xmhp-p9h6-3cqm

## What is CVE-2023-2578?

CVE-2023-2578 is a medium-severity cross-site scripting vulnerability in Unknown Buy Me a Coffee, published on 10 Jul 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The Buy Me a Coffee WordPress plugin before 3.7 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

## Which versions are affected by CVE-2023-2578?

It affects 1 product.


Products: Buymeacoffee Buy Me a Coffee.

## How do I fix CVE-2023-2578?

No fix has been published for CVE-2023-2578 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2578 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2578 exists.

## Other vulnerabilities in Unknown Buy Me a Coffee

- [CVE-2023-2078](https://insights.sbomify.com/CVE-2023-2078/): Buy Me a Coffee – Button and Widget Plugin <= 3.7 - Missing Authorization (high 7.3)
- [CVE-2023-2079](https://insights.sbomify.com/CVE-2023-2079/): Buy Me a Coffee – Button and Widget Plugin <= 3.7 - Cross-Site Request Forgery (high 7.1)
- [CVE-2023-2082](https://insights.sbomify.com/CVE-2023-2082/): Buy Me a Coffee – Button and Widget Plugin <= 3.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting (medium 6.4)
- [CVE-2023-25030](https://insights.sbomify.com/CVE-2023-25030/): WordPress Buy Me a Coffee plugin <= 3.7 - Broken Access Control vulnerability (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2578 and fix it if it is affected.

What it is: CVE-2023-2578 is a medium-severity cross-site scripting vulnerability in Unknown Buy Me a Coffee, published on 10 Jul 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2578 exists.

Affected product: Unknown Buy Me a Coffee. 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-2023-2578/ (Markdown: https://insights.sbomify.com/CVE-2023-2578/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2578
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2578
- OSV: https://osv.dev/vulnerability/CVE-2023-2578

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-2578/
Summaries are generated and may contain mistakes; the official description above is the record.