CVE-2024-52298: pdf viewer macro — Exploit & Fix

Description

macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The PDF Viewer macro allows an attacker to view any attachment using the "Delegate my view right" feature as long as the attacker can view a page whose last author has access to the attachment. For this, the attacker only needs to provide the reference to a PDF file to the macro. To obtain the reference of the desired attachment, the attacker can access the Page Index, Attachments tab. Even if the UI shows N/A, the user can inspect the page and check the HTTP request that fetches the live data entries. The attachment URL is available in the returned JSON for all attachments, including protected ones and allows getting the necessary values. This vulnerability is fixed in version 2.5.6.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-615 CWE-615

Affected Products

Vendor	Product	Versions
xwiki	pdf_viewer_macro	< 2.5.6

References

Advisories & Patches

https://github.com/xwikisas/macro-pdfviewer/security/advisories/GHSA-hph4-7j37-7c97

Exploits

https://github.com/xwikisas/macro-pdfviewer/security/advisories/GHSA-hph4-7j37-7c97

Frequently Asked Questions

What is CVE-2024-52298? +

macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The PDF Viewer macro allows an attacker to view any attachment using the "Delegate my view right" feature as long as the attacker can view a page whose last author has access to the attachment. For this, the attacker only needs to provide the reference to a PDF file to the macro. To obtain the reference of the desired attachment, the attacker can access the Page Index, Attachments tab. Even if the UI shows N/A, the user can inspect the page and check the HTTP request that fetches the live data entries. The attachment URL is available in the returned JSON for all attachments, including protected ones and allows getting the necessary values. This vulnerability is fixed in version 2.5.6. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-52298? +

CVE-2024-52298 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-52298? +

CVE-2024-52298 affects products from xwiki, specifically: pdf_viewer_macro. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-52298? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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