# CVE-2024-30263: The PDF Viewer macro can be used to view PDF attachments with restricted access

> Users with edit or view rights can bypass access restrictions to view protected PDF attachments via the PDF Viewer macro.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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:** 4 Apr 2024
- **Updated:** 21 Aug 2024
- **Also known as:** GHSA-93qq-2h34-g29f

## What is CVE-2024-30263?

CVE-2024-30263 is a high-severity missing authorization vulnerability in xwikisas macro-pdfviewer, published on 4 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. Users with edit rights can access restricted PDF attachments using the PDF Viewer macro, just by passing the attachment URL as the value of the ``file`` parameter. Users with view rights can access restricted PDF attachments if they are shown on public pages where the PDF Viewer macro is called using the attachment URL instead of its reference. This vulnerability has been patched in version 2.5.1.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2024-30263?


## How do I fix CVE-2024-30263?

No fix has been published for CVE-2024-30263 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-30263 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-30263 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-30263 and fix it if it is affected.

What it is: CVE-2024-30263 is a high-severity missing authorization vulnerability in xwikisas macro-pdfviewer, published on 4 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-30263 exists.

Affected product: xwikisas macro-pdfviewer. 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-2024-30263/ (Markdown: https://insights.sbomify.com/CVE-2024-30263/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-30263
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-30263
- OSV: https://osv.dev/vulnerability/CVE-2024-30263

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-30263/
Summaries are generated and may contain mistakes; the official description above is the record.