{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66092","assignerOrgId":"9c1820ae-fb77-4810-a8aa-ca46e7474d2f","state":"PUBLISHED","assignerShortName":"MON-CSIRT","dateReserved":"2026-07-24T02:22:10.431Z","datePublished":"2026-10-29T01:39:28.582Z","dateUpdated":"2026-10-29T02:02:12.981Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9c1820ae-fb77-4810-a8aa-ca46e7474d2f","shortName":"MON-CSIRT","dateUpdated":"2026-10-29T01:39:28.582Z"},"title":"Stored XSS in pre-login notice via reachable legacy logon route","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-79","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"affected":[{"vendor":"Apereo Foundation","product":"openEQUELLA","versions":[{"status":"affected","version":"2019.1","lessThan":"2026.2","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In openEQUELLA before 2026.2, the pre-login notice is stored as HTML and rendered on the legacy logon page without encoding or sanitisation. A user holding the EDIT_SYSTEM_SETTINGS permission can set a notice containing an arbitrary script (PUT /api/preloginnotice), resulting in stored cross-site scripting on the login page. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or Everyone","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>In openEQUELLA before 2026.2, the pre-login notice is stored as HTML and rendered on the legacy logon page without encoding or sanitisation. A user holding the EDIT_SYSTEM_SETTINGS permission can set a notice containing an arbitrary script (PUT /api/preloginnotice), resulting in stored cross-site scripting on the login page. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or Everyone</p><br>"}]}],"references":[{"url":"https://github.com/openequella/openEQUELLA/security/advisories/GHSA-9jhj-7h37-3j2c","tags":["vendor-advisory"]},{"url":"https://openequella.github.io/guides/","tags":["product"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":4.8,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}}],"solutions":[{"lang":"en","value":"Update to vendor recommended versions","supportingMedia":[{"type":"text/html","base64":false,"value":"Update to vendor recommended versions"}]}],"credits":[{"lang":"en","value":"Nguyễn Tuấn Hùng ( University of Information Technology: VNUHCM - UIT )","type":"finder"},{"lang":"en","value":"Lê Ngọc Bảo Minh ( University of Information Technology: VNUHCM - UIT )","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-66092","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-29T01:50:05.964473Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-29T02:02:12.981Z"}}]}}