Security advisory

{
  "id": "d23be6a099c766394eafea39194089fdc5bc058547635e60108d3cca42768e4c",
  "url": "https://osv.dev/vulnerability/CVE-2018-20858",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20858",
    "summary": "Recommender before 2018-07-18 allows XSS.",
    "evidence": "osv:CVE-2018-20858",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-20858",
      "aliases": [
        "CVE-2018-20858",
        "GHSA-3j5x-7ccf-ppgm",
        "PYSEC-2019-219"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openedx/RecommenderXBlock",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2c5e36fbf6f7577a517115df60bdb0cf7e2e17ed"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:edx:recommender:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2",
            "v1.1",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20858.json"
          }
        }
      ],
      "modified": "2026-10-20T10:48:05.260474350Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/forum/#%21topic/openedx-announce/SF8Sn6MuUTg",
        "https://github.com/edx/RecommenderXBlock/pull/2"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-20858",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380026,
  "published_at": "2019-08-09T16:15:10.803+00:00"
}