{"id":"CVE-2026-91107","aliases":["EUVD-2026-92806","GHSA-r588-8qfc-26mv"],"status":"published","title":"openSIS Classic 9.3 - Insecure Direct Object Reference (IDOR)","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00238,"percentile":0.1495,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639"],"published":"2026-10-05T21:29:29Z","modified":"2026-10-28T02:30:23Z","products":[{"vendor":"os4ed","product":"opensis-classic"}],"references":[{"url":"https://fluidattacks.com/advisories/hearts","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/OS4ED/openSIS-Classic","tags":["product","package"]},{"url":"https://github.com/OS4ED/openSIS-Classic/commit/24bb530391a67c114cd4fe3dff65da7e070f5ed1","tags":["patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91107","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r588-8qfc-26mv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91107.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-91107","title":"openSIS Classic 9.3 - Insecure Direct Object Reference (IDOR)","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","status":"published","published":"2026-10-05T21:29:29.268Z","modified":"2026-10-06T13:54:11.351Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:19:52.773089Z"}],"euvd":[{"id":"EUVD-2026-92806","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","status":"published","published":"2026-10-05T21:29:29Z","modified":"2026-10-06T13:54:11Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:37.480805Z"}],"ghsa":[{"id":"GHSA-r588-8qfc-26mv","title":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an...","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","status":"published","published":"2026-10-06T00:32:50Z","modified":"2026-10-06T00:32:55Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:12:49.284876Z"}],"nvd":[{"id":"CVE-2026-91107","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","status":"published","published":"2026-10-05T22:16:58.657Z","modified":"2026-10-06T15:08:38.397Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:12:54.129949Z"}],"osv":[{"id":"CVE-2026-91107","title":"openSIS Classic 9.3 - Insecure Direct Object Reference (IDOR)","description":"openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.","status":"published","published":"2026-10-05T21:29:29.268Z","modified":"2026-10-28T02:30:23.732549048Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:45:20.269367Z"}]}}