# CVE-2024-42008: Cross-site scripting in n/a

> Remote attackers can steal and send victim emails via XSS in Roundcube webmail triggered by malicious email attachments.

- **Severity:** Critical 9.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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:** Yes
- **Published:** 5 Aug 2024
- **Updated:** 13 Mar 2025
- **Also known as:** DEBIAN-CVE-2024-42008, GHSA-78jf-j6qx-c7j3, UBUNTU-CVE-2024-42008

## What is CVE-2024-42008?

CVE-2024-42008 is a critical cross-site scripting vulnerability in Roundcube Webmail, published on 5 Aug 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

A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails of a victim via a malicious e-mail attachment served with a dangerous Content-Type header.

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

## Which versions are affected by CVE-2024-42008?

It affects 1 product.


Products: Roundcube Webmail.

## How do I fix CVE-2024-42008?

Upgrade to a fixed version.

## Is CVE-2024-42008 being exploited?

There is no known exploitation of CVE-2024-42008 in the wild and no public exploit code.

Public exploit code:

- POC for Roundcube vulnerabilities CVE-2024-42008 and CVE-2024-42010 (github_poc): https://github.com/victoni/Roundcube-CVE-2024-42008-and-CVE-2024-42010-POC
- The scripts in this repository are made to abuse CVE-2024-42008 and CVE-2024-42009. Both of these CVEs are vulnerabilities found on Roundcube 1.6.7 (github_poc): https://github.com/Foxer131/CVE-2024-42008-9-exploit
- https://github.com/rpgsec/Roundcube-CVE-2024-42008-POC (github_poc): https://github.com/rpgsec/Roundcube-CVE-2024-42008-POC

## Other vulnerabilities in Roundcube Webmail

- [CVE-2024-42009](https://insights.sbomify.com/CVE-2024-42009/): RoundCube Webmail Cross-Site Scripting (critical 9.3, exploited in the wild)
- [CVE-2025-68461](https://insights.sbomify.com/CVE-2025-68461/): RoundCube Webmail Cross-site Scripting (high 7.2, exploited in the wild)
- [CVE-2008-5619](https://insights.sbomify.com/CVE-2008-5619/): PHPMailer susceptible to arbitrary code execution (critical 10.0)
- [CVE-2024-37385](https://insights.sbomify.com/CVE-2024-37385/): Command injection in n/a (critical 9.8)
- [CVE-2026-74997](https://insights.sbomify.com/CVE-2026-74997/): Command injection in Webmail (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-42008 and fix it if it is affected.

What it is: CVE-2024-42008 is a critical cross-site scripting vulnerability in Roundcube Webmail, published on 5 Aug 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: There is no known exploitation of CVE-2024-42008 in the wild and no public exploit code.

Affected product: Roundcube Webmail. 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-2024-42008/ (Markdown: https://insights.sbomify.com/CVE-2024-42008/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-42008
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-42008
- OSV: https://osv.dev/vulnerability/CVE-2024-42008

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-42008/
Summaries are generated and may contain mistakes; the official description above is the record.