# CVE-2017-9505: Missing authorization in Confluence Server

> Authenticated attackers can view comment content via notifications for pages they lack permission to access, exposing sensitive data.

- **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:** 15 Jun 2017
- **Updated:** 16 Oct 2024
- **Also known as:** GHSA-rc74-f3xq-gqpx

## What is CVE-2017-9505?

CVE-2017-9505 is a medium-severity missing authorization vulnerability in Atlassian Confluence Server, published on 15 Jun 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Atlassian Confluence starting with 4.3.0 before 6.2.1 did not check if a user had permission to view a page when creating a workbox notification about new comments. An attacker who can login to Confluence could receive workbox notifications, which contain the content of comments, for comments added to a page after they started watching it even if they do not have permission to view the page itself.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2017-9505?

It affects 1 product.


Products: Atlassian Confluence.

## How do I fix CVE-2017-9505?

No fix has been published for CVE-2017-9505 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9505 being exploited?

There is no known exploitation of CVE-2017-9505 in the wild and no public exploit code.

## Other vulnerabilities in Atlassian Confluence Server

- [CVE-2019-3395](https://insights.sbomify.com/CVE-2019-3395/): Server-side request forgery in Confluence Server (critical 9.8)
- [CVE-2019-3394](https://insights.sbomify.com/CVE-2019-3394/): Path traversal in Confluence Server (high 8.8)
- [CVE-2019-20406](https://insights.sbomify.com/CVE-2019-20406/): Privilege escalation in Confluence Data Center (high 7.8)
- [CVE-2019-15006](https://insights.sbomify.com/CVE-2019-15006/): Other in Confluence Server (medium 6.5)
- [CVE-2017-18085](https://insights.sbomify.com/CVE-2017-18085/): Cross-site scripting in Confluence (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-9505 and fix it if it is affected.

What it is: CVE-2017-9505 is a medium-severity missing authorization vulnerability in Atlassian Confluence Server, published on 15 Jun 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-9505 in the wild and no public exploit code.

Affected product: Atlassian Confluence Server. 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-2017-9505/ (Markdown: https://insights.sbomify.com/CVE-2017-9505/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9505
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9505
- OSV: https://osv.dev/vulnerability/CVE-2017-9505

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-9505/
Summaries are generated and may contain mistakes; the official description above is the record.