{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63235","assignerOrgId":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4","state":"PUBLISHED","assignerShortName":"CSA","dateReserved":"2026-07-16T02:33:02.674Z","datePublished":"2026-07-29T06:23:33.494Z","dateUpdated":"2026-07-29T14:32:09.066Z"},"containers":{"cna":{"providerMetadata":{"orgId":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4","shortName":"CSA","dateUpdated":"2026-07-29T06:23:33.494Z"},"title":"Improper access control vulnerability","datePublic":"2026-07-29T06:07:00.000Z","affected":[{"vendor":"Three Learning","product":"Koollab LMS","versions":[{"status":"affected","version":"5.3.2"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"An improper access control vulnerability in Koollab LMS\nallowed an\nunauthenticated attacker to forcibly terminate the session of any user given\ntheir email address via the login kickout endpoint, resulting in a denial of\nservice.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An improper access control vulnerability in Koollab LMS\nallowed an\nunauthenticated attacker to forcibly terminate the session of any user given\ntheir email address via the login kickout endpoint, resulting in a denial of\nservice.</p>"}]}],"references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseSeverity":"LOW","baseScore":3.7,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-284","lang":"en","description":"CWE-284 Improper Access Control"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T14:31:18.454962Z","id":"CVE-2026-63235","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-29T14:32:09.066Z"}}]}}