Matrix Synapse before 0.33.3.1 and 0.33.2.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-347"
],
"github_reviewed_at": "2023-07-24T20:04:34Z",
"nvd_published_at": "2018-09-18T21:29:00Z",
"severity": "HIGH"
}