{"id":"CVE-2026-92984","title":"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","summary":"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…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-384"],"vendor":"hubzero","product":"hubzero-cms","affected":["hubzero-cms <= 2.2.32"],"published":"2026-09-17","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:53:07.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92984","references":[{"url":"https://github.com/hubzero/hubzero-cms","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hubzero/hubzero-cms/blob/v2.2.32/core/libraries/Hubzero/Session/Manager.php#L123-L132","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hubzero/hubzero-cms/commit/e60e8ebee5e1d38b1db1fc41bd9164b265b24356","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/hubzero-cms-through-2.2.32-session-fixation-via-query-string-session-identifier","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"epss":0.00255,"epssPercentile":0.17355,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-21T20:43:08.724355Z"},"ingestedAt":"2026-09-17T15:20:39.002Z","slug":"CVE-2026-92984","body":"## Overview\n\nHUBzero 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}