CVE Explorer
CVE-2026-63238
An authentication bypass vulnerability in Koollab LMS allowed an unauthenticated
attacker to take over any account, including administrator accounts, by
supplying a valid user UUID without providing primary credentials via the 2FA
validation endpoint.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Koollab LMS","vendor":"Three Learning","versions":[{"status":"affected","version":"5.3.2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:4972f38b25973a5d446531e68c7342baa0e7c3adf81d15bd6fa55deb095e793b · sha256:a9dca8e0b99f4128… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:4972f38b25973a5d446531e68c7342baa0e7c3adf81d15bd6fa55deb095e793b · sha256:a9dca8e0b99f4128… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:4972f38b25973a5d446531e68c7342baa0e7c3adf81d15bd6fa55deb095e793b · sha256:a9dca8e0b99f4128… · /containers/adp/0/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:4972f38b25973a5d446531e68c7342baa0e7c3adf81d15bd6fa55deb095e793b · sha256:a9dca8e0b99f4128… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.