What is CVE-2026-92984?

CVE-2026-92984 is a high-severity vulnerability in Hubzero Hubzero-Cms, classified under Session Fixation. CVSS score: 8.1/10. Published 2026-09-17.

How severe is CVE-2026-92984?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Hubzero Hubzero-Cms

CVE-2026-92984

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.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Hubzero Hubzero-cms

Weakness classification (CWE)

CWE-384 — Session Fixation

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-92984?: CVE-2026-92984 is a high-severity vulnerability in Hubzero Hubzero-Cms, classified under Session Fixation. CVSS score: 8.1/10. Published 2026-09-17.
How severe is CVE-2026-92984?: High severity. CVSS v3 base score is 8.1 out of 10.