Vulnerability in Element
CVE-2022-41904
Element iOS is an iOS Matrix client provided by Element. It is based on MatrixSDK. Prior to version 1.9.7, events encrypted using Megolm for which trust could not be established did not get decorated accordingly (with warning shields). Therefore a malicious homeserver could inject messages into the room without the user being alerted that the messages were not sent by a verified group member, even if the user has previously verified all group members. This issue has been patched in Element iOS 1.9.7. There are currently no known workarounds.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Element
- Vector-Im Element-Ios — versions < 1.9.7
Weakness classification (CWE)
References
- github.com/vector-im/element-ios/security/advisories/GHSA-fm8m-99j7-323g (Third Party Advisory)
- github.com/vector-im/element-ios/releases/tag/v1.9.7 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-41904?
- CVE-2022-41904 is a medium-severity vulnerability in Element, classified under CWE-357. CVSS score: 6.4/10. Published 2022-11-11.
- How severe is CVE-2022-41904?
- Medium severity. CVSS v3 base score is 6.4 out of 10.