Vulnerability in Matrix Synapse
CVE-2018-12423
In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.
EPSS: 0.018 (76.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Matrix Synapse
- N/a — versions n/a
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-12423?
- CVE-2018-12423 is a high-severity vulnerability in Matrix Synapse. CVSS score: 7.5/10. Published 2018-06-14.
- How severe is CVE-2018-12423?
- High severity. CVSS v3 base score is 7.5 out of 10.