{
"id": "GHSA-r52f-r9v5-66xr",
"aliases": [
"CVE-2026-55464"
],
"details": "### Impact\nCommonMark is configured with `html_input => 'escape'`, which blocks raw HTML injection. However, javascript: URIs in Markdown hyperlinks are not sanitized. A user with `assets.edit` permission can inject a malicious link into any markdown-textarea custom field. Any user who opens the asset detail page and clicks the link executes arbitrary JavaScript in their browser session.",
"summary": "Snipe-IT vulnerable to stored XSS via Markdown custom field ",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.6.2"
}
]
}
],
"package": {
"name": "snipe/snipe-it",
"ecosystem": "Packagist"
},
"database_specific": {
"last_known_affected_version_range": "<= 8.6.1"
}
}
],
"modified": "2026-08-28T17:58:55Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
}
],
"published": "2026-08-28T17:58:55Z",
"references": [
{
"url": "https://github.com/grokability/snipe-it/security/advisories/GHSA-r52f-r9v5-66xr",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55464",
"type": "ADVISORY"
},
{
"url": "https://github.com/grokability/snipe-it/commit/006981cccffce1739e24d3b680b676f772f40e2d",
"type": "WEB"
},
{
"url": "https://github.com/grokability/snipe-it",
"type": "PACKAGE"
},
{
"url": "https://github.com/grokability/snipe-it/releases/tag/v8.6.2",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-79"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-07-10T19:17:24Z",
"github_reviewed_at": "2026-08-28T17:58:55Z"
}
}