CVE-2018-12423 The advisory has been revoked - it doesn't affect any version of package matrix-synapse (opens in a new tab)
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-MATRIXSYNAPSE-1567801
- published14 Jun 2018
- disclosed14 Jun 2018
Introduced: 14 Jun 2018
CVE-2018-12423 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:12.
NVD Description
Note: Versions mentioned in the description apply only to the upstream matrix-synapse package and not the matrix-synapse package as distributed by Debian.
In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.