Security advisory

{
  "id": "eb0855ab3e695b797b747a7f3c7a951af6bfafcafd711a065c14ad96b9a73748",
  "url": "https://osv.dev/vulnerability/CVE-2021-3857",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3857",
    "summary": "chaskiq is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
    "evidence": "osv:CVE-2021-3857",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-3857",
      "aliases": [
        "CVE-2021-3857"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/chaskiq/chaskiq",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1990a7a054b122c7701cf99188ea51c8503971d0"
                },
                {
                  "fixed": "bffa585862b11cc05229ab3ed621d68f70ed33d0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:chaskiq:chaskiq:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.9.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bffa585862b11cc05229ab3ed621d68f70ed33d0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.9.5",
            "0.9.2",
            "0.9.0",
            "0.8.5",
            "0.8.1",
            "0.8.0",
            "0.7.0",
            "0.6.1",
            "0.6.0",
            "0.5.0",
            "0.4.5",
            "0.4.0",
            "0.3.0",
            "0.2.0",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "v0.1.0",
            "0.1.0",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3857.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:52.276934426Z",
      "provider": "osv",
      "references": [
        "https://github.com/chaskiq/chaskiq/commit/bffa585862b11cc05229ab3ed621d68f70ed33d0",
        "https://huntr.dev/bounties/18f7eaee-6309-40cb-aed3-d5ac0af03cf3"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-3857",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386313,
  "published_at": "2022-01-17T12:15:09.19+00:00"
}