Security advisory

{
  "id": "3e152ac1ec122c9e32ac1a5dc7b383a85ca76bda2e528458fff438914ccff06f",
  "url": "https://osv.dev/vulnerability/CVE-2021-20848",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-20848",
    "summary": "Cross-site scripting vulnerability in rwtxt versions prior to v1.8.6 allows a remote attacker to inject an arbitrary script via unspecified vectors.",
    "evidence": "osv:CVE-2021-20848",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-20848",
      "aliases": [
        "CVE-2021-20848",
        "GHSA-458f-26r3-x2c3",
        "GO-2022-0231"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/schollz/rwtxt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "765607434c27645a8baea6a0654142096a21c486"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:rwtxt_project:rwtxt:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.5",
            "v1.8.3",
            "v1.8.2",
            "v1.8.1",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20848.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:27.700920240Z",
      "provider": "osv",
      "references": [
        "https://jvn.jp/en/jp/JVN22515597/index.html",
        "https://github.com/schollz/rwtxt"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-20848",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385378,
  "published_at": "2021-11-24T16:15:13.437+00:00"
}