The Hotblocks module 6.x-1.x before 6.x-1.8 for Drupal allows remote authenticated users with the "administer hotblocks" permission to cause a denial of service (infinite loop and time out) via a block that references itself.
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub