{"id":"CVE-2021-40310","aliases":["EUVD-2021-27493","GHSA-3xrw-4r8r-42q3"],"status":"published","title":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability...","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00839,"percentile":0.58131,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-09-24T15:07:24Z","modified":"2026-10-24T10:50:25Z","products":[{"vendor":"os4ed","product":"opensis"}],"references":[{"url":"https://github.com/OS4ED/openSIS-Classic","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","package"]},{"url":"https://www.youtube.com/watch?v=aPKPUDmmYpc","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40310"},{"url":"https://github.com/advisories/GHSA-3xrw-4r8r-42q3"}],"sources":{"cve":[{"id":"CVE-2021-40310","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","status":"published","published":"2021-09-24T15:07:24Z","modified":"2024-08-04T02:27:31.878Z","updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-27493","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","status":"published","published":"2021-09-24T15:07:24Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:20.862157Z"}],"ghsa":[{"id":"GHSA-3xrw-4r8r-42q3","title":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability...","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","status":"published","published":"2022-05-24T19:15:42Z","modified":"2023-01-30T05:02:27Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:38.51672Z"}],"nvd":[{"id":"CVE-2021-40310","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","status":"published","published":"2021-09-24T16:15:08.47Z","modified":"2026-06-17T04:06:43.243Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:58.933037Z"}],"osv":[{"id":"CVE-2021-40310","description":"OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.","status":"published","published":"2021-09-24T16:15:08.47Z","modified":"2026-10-24T10:50:25.425402222Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:21.249056Z"}]}}