# CVE-2011-2937: Cross-site scripting in n/a

> Remote attackers can inject arbitrary web script or HTML via the _mbox parameter in Roundcube Webmail, potentially leading to session hijacking or malicious actions.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 21 Sep 2011
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-2937, GHSA-c8f2-q59w-gpfp

## What is CVE-2011-2937?

CVE-2011-2937 is a medium-severity cross-site scripting vulnerability in Roundcube Webmail, published on 21 Sep 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting (XSS) vulnerability in the UI messages functionality in Roundcube Webmail before 0.5.4 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter to the default URI.

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

## Which versions are affected by CVE-2011-2937?

It affects 1 product.


Products: Roundcube Webmail.

## How do I fix CVE-2011-2937?

Upgrade to a fixed version.

## Is CVE-2011-2937 being exploited?

There is no known exploitation of CVE-2011-2937 in the wild and no public exploit code.

## 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-2024-42008](https://insights.sbomify.com/CVE-2024-42008/): Cross-site scripting in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-2937 and fix it if it is affected.

What it is: CVE-2011-2937 is a medium-severity cross-site scripting vulnerability in Roundcube Webmail, published on 21 Sep 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2011-2937 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-2011-2937/ (Markdown: https://insights.sbomify.com/CVE-2011-2937/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-2937
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-2937
- OSV: https://osv.dev/vulnerability/CVE-2011-2937

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-2937/
Summaries are generated and may contain mistakes; the official description above is the record.