{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f78407d5291c686c3f416073dcb9143f3a3d5489"
            }
          ],
          "repo": "https://github.com/os4ed/opensis-classic",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "OpenSIS Community Edition version \u003c= 7.6 is affected by a reflected XSS vulnerability in EmailCheck.php via the \"opt\" parameter.",
  "id": "CVE-2021-27340",
  "modified": "2026-03-04T08:35:22.074606573Z",
  "published": "2021-09-16T14:15:07.410Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5ba"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OS4ED/openSIS-Classic/issues/158"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OS4ED/openSIS-Classic/releases"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/OS4ED/openSIS-Classic/issues/158"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5ba"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}