CVE-2026-92984

EUVD-2026-81621
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/hubzero/hubzero-cms
https://github.com/hubzero/hubzero-cms/blob/v2.2.32/core/libraries/Hubzero/Session/Manager.php#L123-L132
https://github.com/hubzero/hubzero-cms/commit/e60e8ebee5e1d38b1db1fc41bd9164b265b24356
https://www.vulncheck.com/advisories/hubzero-cms-through-2.2.32-session-fixation-via-query-string-session-identifier