PYSEC-2026-115

Vulnerability from pysec - Published: 2026-01-30 23:16 - Updated: 2026-05-21 14:54
VLAI
Details

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?'"-->alert('Raif_Berkay') will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.

Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impacted products
Name purl
pycti pkg:pypi/pycti
Aliases
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "pycti",
        "purl": "pkg:pypi/pycti"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.1",
        "1.2.11",
        "1.2.12",
        "1.2.13",
        "1.2.14",
        "1.2.15",
        "1.2.2",
        "1.2.4",
        "1.2.9",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.1.10",
        "2.1.11",
        "2.1.12",
        "2.1.13",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.1.6",
        "2.1.7",
        "2.1.8",
        "2.1.9",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.2.6",
        "3.2.7",
        "3.3.0",
        "3.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-37044"
  ],
  "details": "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\u0027s browser. For example, a request to /graphql?\u0027\"--\u003e\u003c/style\u003e\u003c/scRipt\u003e\u003cscRipt\u003ealert(\u0027Raif_Berkay\u0027)\u003c/scRipt\u003e will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.",
  "id": "PYSEC-2026-115",
  "modified": "2026-05-21T14:54:40.701446Z",
  "published": "2026-01-30T23:16:10.257Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.opencti.io/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/opencti-cross-site-scripting"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/OpenCTI-Platform/opencti"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.exploit-db.com/exploits/48595"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}



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