Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
{ "versions": [ { "introduced": "0" }, { "fixed": "0.33.3.1" } ] }
[ { "events": [ { "introduced": "0" }, { "last_affected": "8.0" } ] } ]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16515.json"