{"cve":"CVE-2020-27409","nvd":{"published":"2020-12-04T16:15:11.047","modified":"2026-06-17T03:09:13.060","status":"Modified","description":"OpenSIS Community Edition before 7.5 is affected by a cross-site scripting (XSS) vulnerability in SideForStudent.php via the modname parameter.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/OS4ED/openSIS-Responsive-Design/commit/edca0855e7bc27d5b28dcb2d16f057ada865e282#diff-5f88e2ce4cd96451df7580911120b4b2","https://github.com/OS4ED/openSIS-Responsive-Design/compare/ver7.4...V7.5","https://insinuator.net/2020/10/opensis-vulnerabilities/","https://github.com/OS4ED/openSIS-Responsive-Design/commit/edca0855e7bc27d5b28dcb2d16f057ada865e282#diff-5f88e2ce4cd96451df7580911120b4b2","https://github.com/OS4ED/openSIS-Responsive-Design/compare/ver7.4...V7.5"],"products":["os4ed:opensis"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-27409","score":0.0119,"percentile":0.67955,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}