CVE-2024-51749: Element's thumbnails can be abused to misrepresent the content of an attachment
Element is a Matrix web client built using the Matrix React SDK. Versions of Element Web and Desktop earlier than 1.11.85 do not check if thumbnails for attachments, stickers and images are coherent. It is possible to add thumbnails to events trigger a file download once clicked. Fixed in element-web 1.11.85.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-51749?
CVE-2024-51749 has been classified with a moderate severity due to the risk of unauthorized file downloads.
How do I fix CVE-2024-51749?
To remediate CVE-2024-51749, upgrade to Element Web and Desktop version 1.11.85 or later.
What does CVE-2024-51749 affect?
CVE-2024-51749 affects Element Web and Element Desktop versions prior to 1.11.85.
Can CVE-2024-51749 lead to any exploitation?
Yes, CVE-2024-51749 can potentially be exploited to trigger unwanted file downloads via manipulated thumbnails.
Is there a patch available for CVE-2024-51749?
Yes, a patch is included in Element versions 1.11.85 and newer, addressing the vulnerability.