Pydio Cells 4.1.2 Cross Site Scripting

Secure your products with top-tier expert knowledge and advanced Penetration Testing (CREST Approved)

Let's collaborate to build and maintain secure, trustworthy products

We transform threats into trust by integrating advanced tech and expertise in product security. Our approach encompasses Security by Design, rigorous security assurance and penetration testing, and compliance through expert documentation, from design to post-market. We offer CREST-approved pen testing in EMEA, upholding top security standards.

CREST Approved in EMEA

Pydio Cells versions 4.1.2 and below implement the download of files using presigned URLs which are generated using the Amazon AWS SDK for JavaScript. The secrets used to sign these URLs are hardcoded and exposed through the JavaScript files of the web application. Therefore, it is possible to generate valid signatures for arbitrary download URLs. By uploading an HTML file and modifying the download URL to serve the file inline instead of as an attachment, any included JavaScript code is executed when the URL is opened in a browser, leading to a cross site scripting vulnerability.   Exploit Files ≈ Packet Storm 

 

More To Explore