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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (40.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/hubzero/hubzero-cms/commit/e60e8ebee5e1d38b1db1fc41bd9164b265b24356 (patch)
- github.com/hubzero/hubzero-cms (product)
- github.com/hubzero/hubzero-cms/blob/v2.2.32/core/libraries/Hubzero/Session/Mana… (technical-description)
- www.vulncheck.com/advisories/hubzero-cms-through-2.2.32-session-fixation-via-qu… (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.