Security advisory
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
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-37044
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:58 UTC · Revision 1
Source evidence
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"
}