# CVE-2018-5227: Cross-site scripting in Atlassian Application Links

> Remote attackers with admin rights can inject arbitrary HTML or JavaScript via the display URL of a configured application link.

- **Severity:** Medium 4.8 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Apr 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-2v2m-7p9m-5v4v

## What is CVE-2018-5227?

CVE-2018-5227 is a medium-severity cross-site scripting vulnerability in Atlassian Application Links, published on 10 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Various administrative application link resources in Atlassian Application Links before version 5.4.4 allow remote attackers with administration rights to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the display url of a configured application link.

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

## Which versions are affected by CVE-2018-5227?

It affects 1 product.


Products: Atlassian Application Links.

## How do I fix CVE-2018-5227?

No fix has been published for CVE-2018-5227 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-5227 being exploited?

There is no known exploitation of CVE-2018-5227 in the wild and no public exploit code.

## Other vulnerabilities in Atlassian Application Links

- [CVE-2017-18111](https://insights.sbomify.com/CVE-2017-18111/): XML external entity in Application Links (high 8.7)
- [CVE-2017-18096](https://insights.sbomify.com/CVE-2017-18096/): Server-side request forgery in Atlassian Application Links (high 7.2)
- [CVE-2017-16860](https://insights.sbomify.com/CVE-2017-16860/): Cross-site scripting in Application Links (medium 6.1)
- [CVE-2018-20239](https://insights.sbomify.com/CVE-2018-20239/): Cross-site scripting in Atlassian Application Links (medium 5.4)
- [CVE-2019-20105](https://insights.sbomify.com/CVE-2019-20105/): Missing authorization in Application Links (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-5227 and fix it if it is affected.

What it is: CVE-2018-5227 is a medium-severity cross-site scripting vulnerability in Atlassian Application Links, published on 10 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-5227 in the wild and no public exploit code.

Affected product: Atlassian Application Links. 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-2018-5227/ (Markdown: https://insights.sbomify.com/CVE-2018-5227/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-5227
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-5227
- OSV: https://osv.dev/vulnerability/CVE-2018-5227

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-5227/
Summaries are generated and may contain mistakes; the official description above is the record.