# CVE-2013-4790: Information disclosure in n/a

> Authenticated users can discover other users' email credentials by associating a personal email with a crafted IMAP server hostname.

- **Severity:** Low 3.5 (`AV:N/AC:M/Au:S/C:P/I:N/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:** No
- **Published:** 5 Sep 2013
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-c7w4-539g-cx4r

## What is CVE-2013-4790?

CVE-2013-4790 is a low-severity vulnerability in Open-Xchange Open-Xchange Appsuite, published on 5 Sep 2013. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Open-Xchange AppSuite before 7.0.2 rev14, 7.2.0 before rev11, 7.2.1 before rev10, and 7.2.2 before rev9 relies on user-supplied data to predict the IMAP server hostname for an external domain name, which allows remote authenticated users to discover e-mail credentials of other users in opportunistic circumstances via a manual-mode association of a personal e-mail address with the hostname of a crafted IMAP server.

Weakness: CWE-255

## Which versions are affected by CVE-2013-4790?

It affects 1 product.


Products: Open-Xchange Open-Xchange Appsuite.

## How do I fix CVE-2013-4790?

No fix has been published for CVE-2013-4790 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-4790 being exploited?

There is no known exploitation of CVE-2013-4790 in the wild and no public exploit code.

## Other vulnerabilities in Open-Xchange Open-Xchange Appsuite

- [CVE-2017-13667](https://insights.sbomify.com/CVE-2017-13667/): Server-side request forgery in n/a (critical 9.9)
- [CVE-2020-12645](https://insights.sbomify.com/CVE-2020-12645/): Denial of service in n/a (critical 9.8)
- [CVE-2019-7158](https://insights.sbomify.com/CVE-2019-7158/): Missing authorization in n/a (critical 9.8)
- [CVE-2017-17060](https://insights.sbomify.com/CVE-2017-17060/): Misconfiguration in n/a (critical 9.8)
- [CVE-2017-5210](https://insights.sbomify.com/CVE-2017-5210/): Information disclosure in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-4790 and fix it if it is affected.

What it is: CVE-2013-4790 is a low-severity vulnerability in Open-Xchange Open-Xchange Appsuite, published on 5 Sep 2013. 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-2013-4790 in the wild and no public exploit code.

Affected product: Open-Xchange Open-Xchange Appsuite. 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-2013-4790/ (Markdown: https://insights.sbomify.com/CVE-2013-4790/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-4790
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-4790
- OSV: https://osv.dev/vulnerability/CVE-2013-4790

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-4790/
Summaries are generated and may contain mistakes; the official description above is the record.