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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-37044

OpenCTI 3.3.1 is vulnerable to a reflected cross-site scripting (XSS) attack via the /graphql endpoint. An attacker can inject arbitrary JavaScript code by sending a crafted GET request with a malicious payload in the query string, leading to execution of JavaScript in the victim's browser. For example, a request to /graphql?'"--> will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2020-37044
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 09:58 UTC · Revision 1

Source evidence

CVE-2020-37044

core-osv · Original source

Published 30 Jan 2026, 23:16 UTC

OpenCTI 3.3.1 is vulnerable to a reflected cross-site scripting (XSS) attack via the /graphql endpoint. An attacker can inject arbitrary JavaScript code by sending a crafted GET request with a malicious payload in the query string, leading to execution of JavaScript in the victim's browser. For example, a request to /graphql?'"--> will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.

osv:CVE-2020-37044
Complete source record
{
  "id": "7e4ea9ed526ad42ca6e1531fe016a29f417bdbdfe6fd094bb47c2dcf841972b3",
  "url": "https://osv.dev/vulnerability/CVE-2020-37044",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-37044",
    "summary": "OpenCTI 3.3.1 is vulnerable to a reflected cross-site scripting (XSS) attack via the /graphql endpoint. An attacker can inject arbitrary JavaScript code by sending a crafted GET request with a malicious payload in the query string, leading to execution of JavaScript in the victim's browser. For example, a request to /graphql?'\"--> will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.",
    "evidence": "osv:CVE-2020-37044",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-37044",
      "aliases": [
        "CVE-2020-37044",
        "PYSEC-2026-115"
      ],
      "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/opencti-platform/opencti",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8db2da84f2e88f3b7b86e06e78c76806fa59ea25"
                },
                {
                  "last_affected": "8db2da84f2e88f3b7b86e06e78c76806fa59ea25"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:citeum:opencti:3.3.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.1"
                      },
                      {
                        "last_affected": "3.3.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-37044.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:31.841777039Z",
      "provider": "osv",
      "references": [
        "https://www.opencti.io/",
        "https://www.vulncheck.com/advisories/opencti-cross-site-scripting",
        "https://github.com/OpenCTI-Platform/opencti",
        "https://www.exploit-db.com/exploits/48595"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-37044",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380518,
  "published_at": "2026-01-30T23:16:10.257+00:00"
}