{"id":"CVE-2026-28201","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-28201","generatedAt":"2026-10-28T02:56:29.650Z","title":"An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1 allows remote attacker to trick a legitimate user to alter or delete arbitrary database entries via specially crafted malicious URL.","description":"An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1 allows remote attacker to trick a legitimate user to alter or delete arbitrary database entries via specially crafted malicious URL. Depending on the deployment, data exfiltration is also possible.","published":"2026-05-07T11:16:01.000Z","lastModified":"2026-06-17T10:28:20.000Z","status":"Analyzed","sourceIdentifier":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-20","CWE-352","CWE-917"],"affected":["lfnovo/open-notebook"],"epss":{"score":0.00144,"percentile":0.03628,"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 (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/lfnovo/open-notebook/security/advisories/GHSA-5wj9-f8q5-8f9c","tags":["Vendor Advisory"],"source":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-28201","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."}