CVE-2024-47779

Description

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 vector has been identified internally, involving malicious widgets, but other vectors may exist. Note that despite superficial similarity to CVE-2024-47771, this is an entirely separate vulnerability, caused by a separate piece of code included only in Element Web. Element Web and Element Desktop share most but not all, of their code and this vulnerability exists in the part of the code base which is not shared between the projects. Users are strongly advised to upgrade to version 1.11.81 to remediate the issue. As a workaround, avoid granting permissions to untrusted widgets.

Reserved 2024-09-30 | Published 2024-10-15 | Updated 2024-11-12 | Assigner GitHub_M

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

>= 1.11.70, < 1.11.81
affected

References

github.com/...nt-web/security/advisories/GHSA-3jm3-x98c-r34x

github.com/...ommit/8d7f2b5c1301129a488d3597f3839bd74203ee62

cve.org (CVE-2024-47779)

nvd.nist.gov (CVE-2024-47779)

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