# CVE-2019-15011: Missing authorization in Application Links

> Non-admin users can access sensitive application link information due to a missing permissions check in the ListEntityLinksServlet resource.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Dec 2019
- **Updated:** 16 Sep 2024
- **Also known as:** CVE-2019-20417, GHSA-2p8c-2cmg-p6f8

## What is CVE-2019-15011?

CVE-2019-15011 is a medium-severity missing authorization vulnerability in Atlassian Application Links, published on 17 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The ListEntityLinksServlet resource in Application Links before version 5.0.12, from version 5.1.0 before version 5.2.11, from version 5.3.0 before version 5.3.7, from version 5.4.0 before 5.4.13, and from version 6.0.0 before 6.0.5 disclosed application link information to non-admin users via a missing permissions check.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2019-15011?

It affects 1 product.


Products: Atlassian Application Links.

## How do I fix CVE-2019-15011?

No fix has been published for CVE-2019-15011 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-15011 being exploited?

There is no known exploitation of CVE-2019-15011 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-2019-15011 and fix it if it is affected.

What it is: CVE-2019-15011 is a medium-severity missing authorization vulnerability in Atlassian Application Links, published on 17 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-15011 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-2019-15011/ (Markdown: https://insights.sbomify.com/CVE-2019-15011/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15011
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15011
- OSV: https://osv.dev/vulnerability/CVE-2019-15011

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-15011/
Summaries are generated and may contain mistakes; the official description above is the record.