# CVE-2018-13790: Server-side request forgery in n/a

> An SSRF vulnerability in concrete5 allows attackers to access internal network resources and map the local network via the File Manager URL functionality.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hxh5-f5fj-62c3

## What is CVE-2018-13790?

CVE-2018-13790 is a high-severity server-side request forgery vulnerability in Concretecms Concrete Cms, published on 9 Jul 2018. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A Server Side Request Forgery (SSRF) vulnerability in tools/files/importers/remote.php in concrete5 8.2.0 can lead to attacks on the local network and mapping of the internal network, because of URL functionality on the File Manager page.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2018-13790?

It affects 1 product.


Products: Concretecms Concrete Cms.

## How do I fix CVE-2018-13790?

No fix has been published for CVE-2018-13790 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-13790 being exploited?

There is no known exploitation of CVE-2018-13790 in the wild and no public exploit code.

## Other vulnerabilities in Concretecms Concrete Cms

- [CVE-2023-48648](https://insights.sbomify.com/CVE-2023-48648/): Concrete CMS allows unauthorized access because directories can be created with insecure permissions (critical 9.8)
- [CVE-2022-21829](https://insights.sbomify.com/CVE-2022-21829/): Code injection in concrete CMS (critical 9.8)
- [CVE-2021-22958](https://insights.sbomify.com/CVE-2021-22958/): Server-Side Request Forgery vulnerability in concrete5 (critical 9.8)
- [CVE-2021-40098](https://insights.sbomify.com/CVE-2021-40098/): Path traversal in n/a (critical 9.8)
- [CVE-2026-8134](https://insights.sbomify.com/CVE-2026-8134/): Concrete CMS Vulnerable to Relative Path Traversal (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-13790 and fix it if it is affected.

What it is: CVE-2018-13790 is a high-severity server-side request forgery vulnerability in Concretecms Concrete Cms, published on 9 Jul 2018. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-13790 in the wild and no public exploit code.

Affected product: Concretecms Concrete Cms. 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-2018-13790/ (Markdown: https://insights.sbomify.com/CVE-2018-13790/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-13790
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-13790
- OSV: https://osv.dev/vulnerability/CVE-2018-13790

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-13790/
Summaries are generated and may contain mistakes; the official description above is the record.