# CVE-2018-15913: Cross-site scripting in n/a

> Attackers can exploit an unvalidated returnUrl parameter in Cloudera Manager to execute malicious JavaScript or redirect users to external sites.

- **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:** 20 Jun 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5m3h-gcpg-742g

## What is CVE-2018-15913?

CVE-2018-15913 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Jun 2019. 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

An issue was discovered in Cloudera Manager 5.x through 5.15.0. One type of page in Cloudera Manager uses a 'returnUrl' parameter to redirect the user to another page in Cloudera Manager once a wizard is completed. The validity of this parameter was not checked. As a result, the user could be automatically redirected to an attacker's external site or perform a malicious JavaScript function that results in cross-site scripting (XSS). This was fixed by not allowing any value in the returnUrl parameter with patterns such as http://, https://, //, or javascript. The only exceptions to this rule are the SAML Login/Logout URLs, which remain supported since they are explicitly configured and they are not passed via the returnUrl parameter.

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

## Which versions are affected by CVE-2018-15913?

It affects 1 product.


Products: Cloudera Cloudera Manager.

## How do I fix CVE-2018-15913?

No fix has been published for CVE-2018-15913 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-15913 being exploited?

There is no known exploitation of CVE-2018-15913 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-30132](https://insights.sbomify.com/CVE-2021-30132/): Privilege escalation in n/a (critical 9.8)
- [CVE-2017-7399](https://insights.sbomify.com/CVE-2017-7399/): Privilege escalation in n/a (high 8.8)
- [CVE-2018-11744](https://insights.sbomify.com/CVE-2018-11744/): Missing authorization in n/a (high 8.1)
- [CVE-2015-6495](https://insights.sbomify.com/CVE-2015-6495/): Information disclosure in n/a (high 7.5)
- [CVE-2017-9326](https://insights.sbomify.com/CVE-2017-9326/): Information disclosure in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-15913 and fix it if it is affected.

What it is: CVE-2018-15913 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Jun 2019. 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-2018-15913 in the wild and no public exploit code.

Affected product: n/a. 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-2018-15913/ (Markdown: https://insights.sbomify.com/CVE-2018-15913/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-15913
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-15913
- OSV: https://osv.dev/vulnerability/CVE-2018-15913

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-15913/
Summaries are generated and may contain mistakes; the official description above is the record.