cbcvebase.
CVE-2018-12423
published 2018-06-14

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.

high7.5CVSS 3.0
AVNACLPRNUINSUCNIHAN
In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.

Affected

2 ranges
VendorProductVersion rangeFixed in
debianmatrix-synapse< matrix-synapse 0.31.2+dfsg-1 (forky)matrix-synapse 0.31.2+dfsg-1 (forky)
matrixsynapse< 0.31.20.31.2

CVSS provenance

nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
osv7.5HIGH