High
Security advisory
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-11401
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:33 UTC · Revision 1
Source evidence
A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the "as" substring is deleted.
osv:CVE-2019-11401
Complete source record
{
"id": "bcea93a93808a8ccb9990261c5e6d7aeb5bbbd5c1139c14d40fd4c38b5a15640",
"url": "https://osv.dev/vulnerability/CVE-2019-11401",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-11401",
"summary": "A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.",
"evidence": "osv:CVE-2019-11401",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-11401",
"aliases": [
"CVE-2019-11401",
"GHSA-ff4w-8chr-w2x9"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siteserver/cms",
"type": "GIT",
"events": [
{
"introduced": "5e04df46b9d73fa75189c93ba58521023129fca7"
},
{
"last_affected": "5e04df46b9d73fa75189c93ba58521023129fca7"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:siteserver:siteserver_cms:6.9.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.9.0"
},
{
"last_affected": "6.9.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"6.9.0",
"siteserver-v6.9.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11401.json"
}
}
],
"modified": "2026-10-20T10:50:39.907675940Z",
"provider": "osv",
"references": [
"https://github.com/siteserver/cms/issues/1858"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-11401",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381969,
"published_at": "2019-04-22T11:29:04.313+00:00"
}