This security release features fixes for multiple issues.

The Wordfence Threat Intelligence Team identified an interesting malware sample in mid June during a site clean. The malware was installed as a must-use plugin with several self-healing mechanisms in place in order to survive removal. It also makes use of Etherhiding, a technique that hides the location of the attacker’s servers behind a smart contract on the Ethereum blockchain, making the command channel resilient to takedown..