{"id":"CVE-2026-63233","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63233","generatedAt":"2026-10-28T01:43:54.726Z","title":"A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location,…","description":"A SQL injection and unsafe deserialisation\nvulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment\noverall answer endpoint, control data passed to unserialize(), write a webshell\nto a publicly accessible location, and execute arbitrary code on the server.","published":"2026-07-29T07:16:43.000Z","lastModified":"2026-10-23T23:10:00.000Z","status":"Deferred","sourceIdentifier":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-89"],"affected":[],"epss":{"score":0.0053,"percentile":0.44524,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/","source":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63233","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}