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9.1

HUBzero CMS lets attackers hijack user sessions

CVE-2026-92984 · published 16 days ago
Summary

The HUBzero CMS platform can accept session IDs from the web address instead of only from secure cookies. This lets an attacker create a link with a known session ID, send it to a user, and then take over the user’s account after they log in. Update to the latest version of HUBzero CMS or apply the provided patch to require cookies for session handling.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
hubzero hubzero-cms <= 2.2.32
Original advisory text
HUBzero CMS through 2.2.32 Session Fixation via Query-String Session Identifier
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.1 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-384Session Fixation
Timeline
Published17 Sep 2026
Updated3 Oct 2026
First seen17 Sep 2026
Sources
CVE-2026-92984 · NVD
CVE-2026-92984 · MITRE
CVE-2026-92984 · OSV
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