Medium
Security advisory
Cross-site scripting vulnerability in EC-CUBE EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-20750
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:30 UTC · Revision 1
Source evidence
Cross-site scripting vulnerability in EC-CUBE EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.
osv:CVE-2021-20750
Complete source record
{
"id": "de701079285e9d6266595d70d629dda0d8b7669d61edd88c1e48f26651ca8f7e",
"url": "https://osv.dev/vulnerability/CVE-2021-20750",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-20750",
"summary": "Cross-site scripting vulnerability in EC-CUBE EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.",
"evidence": "osv:CVE-2021-20750",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-20750",
"aliases": [
"CVE-2021-20750",
"GHSA-vrpv-26fm-7vf7"
],
"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/ec-cube/ec-cube",
"type": "GIT",
"events": [
{
"introduced": "4ef1c4f8d51fd9d54a704300a26c65a278dc697a"
},
{
"fixed": "525aaa9f44407903f5cc20b371a5dd199ddae549"
},
{
"introduced": "00ef39551273847cff9b737f98f120a50d4320cc"
},
{
"fixed": "dc27cb56697f2a02a7950d0a12cdc9983aa0d6a3"
},
{
"introduced": "525aaa9f44407903f5cc20b371a5dd199ddae549"
},
{
"last_affected": "dc27cb56697f2a02a7950d0a12cdc9983aa0d6a3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.18"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:3.0.18:-:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.18-NA"
},
{
"last_affected": "3.0.18-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.0.5:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.5-NA"
},
{
"last_affected": "4.0.5-NA"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.0.18-NA",
"4.0.5-NA",
"4.0.5-rc",
"4.0.4",
"co/20191212",
"co/20191128",
"co/20190912",
"4.0.3",
"co/20191114",
"co/20191031",
"co/20191017",
"co/20190930",
"co/20190905",
"co/20190829",
"co/20190822",
"co/20190808",
"co/20190718",
"co/20190710",
"co/20190613",
"co/20190508",
"co/20190417",
"3.0.17",
"co/20190404",
"co/20190313",
"co/20190306",
"4.0.2",
"4.0.1",
"3.0.16",
"4.0.0",
"3.0.15",
"3.0.14",
"3.0.13",
"3.0.8",
"3.0.12-p1",
"3.0.12",
"3.0.11",
"3.0.11-RC",
"3.0.11-pre",
"3.0.10",
"3.0.9",
"3.0.7",
"3.0.6",
"3.0.5",
"3.0.3",
"3.0.2",
"3.0.1",
"3.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20750.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/ec-cube/ec-cube3",
"type": "GIT",
"events": [
{
"introduced": "4ef1c4f8d51fd9d54a704300a26c65a278dc697a"
},
{
"fixed": "525aaa9f44407903f5cc20b371a5dd199ddae549"
},
{
"introduced": "525aaa9f44407903f5cc20b371a5dd199ddae549"
},
{
"last_affected": "14cd0cf79cec92be106bccb26eb3b84146b75876"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.18"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:3.0.18:-:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.18-NA"
},
{
"last_affected": "3.0.18-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:3.0.18:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.18-p1"
},
{
"last_affected": "3.0.18-p1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.0.18-NA",
"3.0.18-p1",
"3.0.17",
"3.0.16",
"3.0.15",
"3.0.14",
"3.0.13",
"3.0.12-p1",
"3.0.12",
"3.0.11",
"3.0.11-RC",
"3.0.11-pre",
"3.0.10",
"3.0.9",
"3.0.8",
"3.0.7",
"3.0.6",
"3.0.5",
"3.0.3",
"3.0.2",
"3.0.1",
"3.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20750.json"
}
}
],
"modified": "2026-10-24T10:30:54.316802247Z",
"provider": "osv",
"references": [
"https://jvn.jp/en/jp/JVN95292458/index.html",
"https://www.ec-cube.net/info/weakness/weakness.php?id=78",
"https://www.ec-cube.net/info/weakness/weakness.php?id=79"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*"
],
"vendor_product": "ec-cube:ec-cube",
"extracted_events": [
{
"range": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.18"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.5"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.5"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:ec-cube:ec-cube:3.0.18:-:*:*:*:*:*:*",
"cpe:2.3:a:ec-cube:ec-cube:3.0.18:p1:*:*:*:*:*:*",
"cpe:2.3:a:ec-cube:ec-cube:4.0.5:-:*:*:*:*:*:*"
],
"vendor_product": "ec-cube:ec-cube",
"extracted_events": [
{
"range": [
{
"introduced": "3.0.18-NA"
},
{
"last_affected": "3.0.18-NA"
},
{
"introduced": "3.0.18-p1"
},
{
"last_affected": "3.0.18-p1"
},
{
"introduced": "3.0.18-p1"
},
{
"last_affected": "3.0.18-p1"
},
{
"introduced": "4.0.5-NA"
},
{
"last_affected": "4.0.5-NA"
},
{
"introduced": "4.0.5-NA"
},
{
"last_affected": "4.0.5-NA"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-20750",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 438132,
"published_at": "2021-06-28T01:15:07.567+00:00"
}