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Product · element-hq

element-web

7 known vulnerabilities.

element-web at a glance

Last 12 months
2
Critical · all time
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Exploited · all time
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7 results · Feed

  • High 7.1

    Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters

    Element Web and Element Desktop before 1.12.32 accept guest credentials from URL fragment parameters in loadSession, allowing remote unauthenticated attackers to log out users and clear local stores. Attackers can lure logged-in users into opening links with …

  • Medium 5.3

    Element Web: A malicious homeserver can inject HTML in Element Web using its homepage

    Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through …

  • Low 2.7

    In Element Web and Element Desktop, a malicious room can hide an unrelated room and cause it to be left when the malicious room is left

    Element Web is a Matrix web client built using the Matrix React SDK. Element Web and Element Desktop before version 1.11.112 have insufficient validation of room predecessor links, allowing a remote attacker to attempt to impermanently replace a room's entry …

  • Low 3.8

    Element Web could load a malicious instance of Element Call leaking media encryption keys

    Element Web is a Matrix web client built using the Matrix React SDK. Element Web, starting from version 1.11.16 up to version 1.11.96, can be configured to load Element Call from an external URL. Under certain conditions, the external page is able to get acce…

  • Medium 5.0

    Element allows a malicious homeserver can modify events leading to unrenderable events or rooms

    Element is a Matrix web client built using the Matrix React SDK. A malicious homeserver can send invalid messages over federation which can prevent Element Web and Desktop from rendering single messages or the entire room containing them. This was patched in …

  • Low 3.5

    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 d…

  • High 7.0

    Element Web vulnerable to potential exposure of access token via authenticated media

    Element is a Matrix web client built using the Matrix React SDK. Element Web versions 1.11.70 through 1.11.80 contain a vulnerability which can, under specially crafted conditions, lead to the access token becoming exposed to third parties. At least one vecto…