Security advisory
GraphQL Playground (graphql-playground-html NPM package) before version 1.6.22 have a severe XSS Reflection attack vulnerability. All unsanitized user input passed into renderPlaygroundPage() method could trigger this vulnerability. This has been patched in graphql-playground-html version 1.6.22. Note that some of the associated dependent middleware packages are also affected including but not limited to graphql-playground-middleware-express before version 1.7.16, graphql-playground-middleware-koa before version 1.6.15, graphql-playground-middleware-lambda before version 1.7.17, and graphql-playground-middleware-hapi before 1.6.13.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-4038
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:28 UTC · Revision 1
Source evidence
GraphQL Playground (graphql-playground-html NPM package) before version 1.6.22 have a severe XSS Reflection attack vulnerability. All unsanitized user input passed into renderPlaygroundPage() method could trigger this vulnerability. This has been patched in graphql-playground-html version 1.6.22. Note that some of the associated dependent middleware packages are also affected including but not limited to graphql-playground-middleware-express before version 1.7.16, graphql-playground-middleware-koa before version 1.6.15, graphql-playground-middleware-lambda before version 1.7.17, and graphql-playground-middleware-hapi before 1.6.13.
osv:CVE-2020-4038
Complete source record
{
"id": "c9bd465c2656261a1d5da259891f1e0275d9c00f4637f1d69fd6d494f0d16816",
"url": "https://osv.dev/vulnerability/CVE-2020-4038",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-4038",
"summary": "GraphQL Playground (graphql-playground-html NPM package) before version 1.6.22 have a severe XSS Reflection attack vulnerability. All unsanitized user input passed into renderPlaygroundPage() method could trigger this vulnerability. This has been patched in graphql-playground-html version 1.6.22. Note that some of the associated dependent middleware packages are also affected including but not limited to graphql-playground-middleware-express before version 1.7.16, graphql-playground-middleware-koa before version 1.6.15, graphql-playground-middleware-lambda before version 1.7.17, and graphql-playground-middleware-hapi before 1.6.13.",
"evidence": "osv:CVE-2020-4038",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-4038",
"aliases": [
"CVE-2020-4038",
"GHSA-4852-vrh7-28rf"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/graphql/graphql-playground",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "220a7c19030fe15fc309082c3163b109a72a1551"
},
{
"fixed": "bf1883db538c97b076801a60677733816cb3cfb7"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:prisma:graphql-playground-html:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.6.22"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "bf1883db538c97b076801a60677733816cb3cfb7"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v1.8.10",
"v1.8.9",
"v1.8.8",
"v1.8.7",
"v1.8.6",
"v1.8.5",
"v1.8.4",
"v1.8.3",
"v1.8.2",
"v1.8.1",
"v1.8.0",
"v1.7.0",
"v1.6.3",
"1.6.2",
"v1.6.1",
"v1.6.0",
"v1.5.9",
"v1.5.8",
"v1.5.7",
"v1.5.6",
"v1.5.5",
"v1.5.4",
"1.5.3",
"v1.5.2",
"v1.5.1",
"v1.5.0",
"v1.5.0-rc.5",
"v1.5.0-rc.4",
"v1.5.0-rc.2",
"v1.5.0-rc.1",
"v1.4.3",
"v1.4.2",
"v1.4.1",
"v1.4.0",
"v1.3.24",
"v1.3.23",
"v1.3.22",
"v1.3.21",
"v1.3.20",
"v1.3.19",
"v1.3.18",
"v1.3.17",
"v1.3.16",
"v1.3.15",
"v1.3.14",
"v1.3.13",
"v1.3.12",
"v1.3.11",
"v1.3.10",
"v1.3.9",
"v1.3.8",
"1.3.8-beta.1",
"v1.3.6",
"v1.3.5",
"v1.3.4",
"v1.3.0",
"v1.2.0",
"v1.1.6",
"v1.1.1",
"v1.1.0",
"v1.0.2-rc.1",
"v1.0.2",
"v1.0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4038.json"
}
}
],
"modified": "2026-10-20T10:54:21.782660893Z",
"provider": "osv",
"references": [
"https://github.com/prisma-labs/graphql-playground#security-details",
"https://github.com/prisma-labs/graphql-playground/security/advisories/GHSA-4852-vrh7-28rf",
"https://github.com/prisma-labs/graphql-playground/commit/bf1883db538c97b076801a60677733816cb3cfb7"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:prisma:graphql-playground-middleware-express:*:*:*:*:*:node.js:*:*"
],
"vendor_product": "prisma:graphql-playground-middleware-express",
"extracted_events": [
{
"range": [
{
"fixed": "1.7.16"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:prisma:graphql-playground-middleware-hapi:*:*:*:*:*:node.js:*:*"
],
"vendor_product": "prisma:graphql-playground-middleware-hapi",
"extracted_events": [
{
"range": [
{
"fixed": "1.6.13"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:prisma:graphql-playground-middleware-koa:*:*:*:*:*:node.js:*:*"
],
"vendor_product": "prisma:graphql-playground-middleware-koa",
"extracted_events": [
{
"range": [
{
"fixed": "1.6.15"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:prisma:graphql-playground-middleware-lambda:*:*:*:*:*:node.js:*:*"
],
"vendor_product": "prisma:graphql-playground-middleware-lambda",
"extracted_events": [
{
"range": [
{
"fixed": "1.7.17"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-4038",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 385178,
"published_at": "2020-06-08T21:15:09.923+00:00"
}