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GHSA-xr3m-6gq6-22cghigh8.1

Pimcore Authenticated Stored Cross-Site Scripting (XSS) Via Search Document

Impact

A Stored Cross-Site Scripting (XSS) vulnerability in PIMCORE allows remote attackers to inject arbitrary web script or HTML via the PDF upload functionality. This can result in the execution of malicious scripts in the context of the user's browser when the PDF is viewed, leading to potential session hijacking, defacement of web pages, or unauthorized access to sensitive information.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

pimcore/pimcore Packagist
Affected rangeRecorded fix
From 11.4.2 before 11.5.3Ecosystem versions11.5.3

Version evidence: OSV · GHSA-xr3m-6gq6-22cg

View original version evidence (8 explicit versions)

Original source description

Summary

A Stored Cross-Site Scripting (XSS) vulnerability in PIMCORE allows remote attackers to inject arbitrary web script or HTML via the PDF upload functionality. This can result in the execution of malicious scripts in the context of the user's browser when the PDF is viewed, leading to potential session hijacking, defacement of web pages, or unauthorized access to sensitive information.

Details

The vulnerability is present in the PDF upload functionality of the PIM Core Upload module. When a user uploads a PDF file, the application fails to properly sanitize the content, allowing embedded scripts to be executed when the PDF is viewed. The affected code is located in the file handling and rendering logic of the PDF upload feature.

PoC

  1. Log in as Administrator image

  2. Hover to Assets image

  3. Right click and click "Add Asset(s) > upload files image

  4. Upload malicious pdf image

  5. Click on search and select document image

  6. copy the path and open to a new tab

https://demo.pimcore.fun/admin/Sample C

image

  1. XSS PDF can be access without authentication.

image

Image showing no cookies indicator that there are no session currently in

image

Impact

This is a Stored Cross-Site Scripting (XSS) vulnerability. It impacts any user who views the malicious PDF, potentially leading to session hijacking, defacement of web pages, or unauthorized access to sensitive information. The severity is high due to the potential for significant impact on confidentiality and integrity.

References