CVE-2026-92984: Hubzero Hubzero-CMS

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

HUBzero CMS through 2.2.32 accepts session identifiers from query strings and request variables instead of cookies alone, allowing unauthenticated attackers to fixate victim sessions. Attackers can obtain a valid session identifier, send victims a crafted link containing it, and replay the identifier after the victim authenticates to hijack their account and access.

Affected products

• Hubzero Hubzero-CMS: up to and including 2.2.32

Published 2026-09-17. Last modified 2026-09-22.