# CVE-2024-10103: MailPoet < 5.3.2 - Admin+ Stored XSS

> An attacker with editor privileges can inject malicious scripts leading to stored XSS and potential account takeover in the MailPoet WordPress plugin.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 19 Nov 2024
- **Updated:** 19 Nov 2024
- **Also known as:** GHSA-v87w-5qjf-xwc5

## What is CVE-2024-10103?

CVE-2024-10103 is a medium-severity cross-site scripting vulnerability in Unknown MailPoet, published on 19 Nov 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In the process of testing the MailPoet  WordPress plugin before 5.3.2, a vulnerability was found that allows you to implement Stored XSS on behalf of the editor by embedding malicious script, which entails account takeover backdoor

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2024-10103?

It affects 1 product.


Products: Automattic Mailpoet.

## How do I fix CVE-2024-10103?

No fix has been published for CVE-2024-10103 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-10103 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-10103 exists.

## Other vulnerabilities in Unknown MailPoet

- [CVE-2019-11843](https://insights.sbomify.com/CVE-2019-11843/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2024-12743](https://insights.sbomify.com/CVE-2024-12743/): MailPoet < 5.5.2 - Admin+ Stored XSS (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-10103 and fix it if it is affected.

What it is: CVE-2024-10103 is a medium-severity cross-site scripting vulnerability in Unknown MailPoet, published on 19 Nov 2024. An attacker can exploit it over the internet without logging in, 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-2024-10103 exists.

Affected product: Unknown MailPoet. 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-2024-10103/ (Markdown: https://insights.sbomify.com/CVE-2024-10103/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-10103
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-10103
- OSV: https://osv.dev/vulnerability/CVE-2024-10103

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-10103/
Summaries are generated and may contain mistakes; the official description above is the record.