Medium
Security advisory
Cross-site scripting (XSS) vulnerability in the Markdown parser in Loomio before 1.8.0 allows remote attackers to inject arbitrary web script or HTML via non-sanitized Markdown content in a new thread or a thread comment.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-11594
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:54 UTC · Revision 1
Source evidence
Cross-site scripting (XSS) vulnerability in the Markdown parser in Loomio before 1.8.0 allows remote attackers to inject arbitrary web script or HTML via non-sanitized Markdown content in a new thread or a thread comment.
osv:CVE-2017-11594
Complete source record
{
"id": "d0d302e55f6074437d589e07c43dfe8c24c345b0ccf0e613e7ac98f454f3675a",
"url": "https://osv.dev/vulnerability/CVE-2017-11594",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-11594",
"summary": "Cross-site scripting (XSS) vulnerability in the Markdown parser in Loomio before 1.8.0 allows remote attackers to inject arbitrary web script or HTML via non-sanitized Markdown content in a new thread or a thread comment.",
"evidence": "osv:CVE-2017-11594",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-11594",
"aliases": [
"CVE-2017-11594"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/loomio/loomio",
"type": "GIT",
"events": [
{
"introduced": "e16dbab8c65dde0bd9ea311ec645720326d2cc32"
},
{
"last_affected": "77da801c4870ab5d073b4d3dff6c5d251edf6eb2"
},
{
"fixed": "63973f71e337ead8ca7b7ae2a043b837032dc3fe"
},
{
"fixed": "5b51067e58606bc6b4dae8018a3a26172d7949ef"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:loomio:loomio:1.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.0.0"
},
{
"last_affected": "1.0.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.1.0"
},
{
"last_affected": "1.1.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.2.0"
},
{
"last_affected": "1.2.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.3.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.0"
},
{
"last_affected": "1.3.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.4.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.4.0"
},
{
"last_affected": "1.4.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.5.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.5.0"
},
{
"last_affected": "1.5.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.6.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.6.0"
},
{
"last_affected": "1.6.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:loomio:loomio:1.7.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.7.0"
},
{
"last_affected": "1.7.0"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "63973f71e337ead8ca7b7ae2a043b837032dc3fe"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "5b51067e58606bc6b4dae8018a3a26172d7949ef"
}
],
"source": "REFERENCES_TAG",
"original_tag": "1.8.0"
}
]
}
}
],
"versions": [
"1.0.0",
"1.1.0",
"1.2.0",
"1.3.0",
"1.4.0",
"1.5.0",
"1.6.0",
"1.7.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-11594.json"
}
}
],
"modified": "2026-10-20T10:48:23.747964466Z",
"provider": "osv",
"references": [
"https://github.com/loomio/loomio/releases/tag/1.8.0",
"https://github.com/loomio/loomio/commit/63973f71e337ead8ca7b7ae2a043b837032dc3fe",
"https://github.com/loomio/loomio/issues/4220"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2017-11594",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380297,
"published_at": "2017-07-24T01:29:00.74+00:00"
}