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...

CVE-2024-51749

CVE-2024-51749 concerns the Element Matrix web client. The vulnerability affects Element Web and Desktop versions earlier than 1.11.85, where thumbnails for attachments, stickers, and images are not checked for coherence, allowing thumbnails to be added to events that can trigger a file download ...

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...