Medium severity · published Nov 12, 2024
CVE-2024-51750
Element allows a malicious homeserver can modify events leading to unrenderable events or rooms
5.0
CVSS
0.5%
EPSS
No
On KEV
Description
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 Element Web and Desktop 1.11.85.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
element-web · element-hq
< 1.11.85 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-51750
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-51750
github.com
https://github.com/element-hq/element-web/commit/231073c578d5f92b33cde7aa2b0b9c5836b2dc48
github.com
https://github.com/element-hq/element-web/security/advisories/GHSA-w36j-v56h-q9pc
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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