CVE-2024-51749: low-severity vulnerability in element-hq element-web
Element's thumbnails can be abused to misrepresent the content of an attachment
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.5epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Affected products
element-hq · element-webRelated CVEs — element-hq element-web
In the same product, most dangerous first.
CVE-2026-55850MEDIUMElement Web: A malicious homeserver can inject HTML in Element Web using its homepageEPSS 0.5%CVE-2024-51750MEDIUMElement allows a malicious homeserver can modify events leading to unrenderable events or roomsEPSS 0.5%CVE-2024-47779HIGHElement Web vulnerable to potential exposure of access token via authenticated mediaEPSS 0.4%CVE-2025-59161LOWIn Element Web and Element Desktop, a malicious room can hide an unrelated room and cause it to be left when the malicious room is leftEPSS 0.4%CVE-2025-32026LOWElement Web could load a malicious instance of Element Call leaking media encryption keysEPSS 0.2%CVE-2026-119407HIGHElement Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL ParametersEPSS 0.1%