High
Security advisory
An Incorrect Access Control vulnerability exists in zzcms 8.2, which lets a malicious user bypass authentication by changing the user name in the cookie to use any password.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-45347
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:02 UTC · Revision 1
Source evidence
An Incorrect Access Control vulnerability exists in zzcms 8.2, which lets a malicious user bypass authentication by changing the user name in the cookie to use any password.
osv:CVE-2021-45347
Complete source record
{
"id": "b9daed56062c39560de54e8ab76012b105fd818e73b84992c312996c6990de09",
"url": "https://osv.dev/vulnerability/CVE-2021-45347",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-45347",
"summary": "An Incorrect Access Control vulnerability exists in zzcms 8.2, which lets a malicious user bypass authentication by changing the user name in the cookie to use any password.",
"evidence": "osv:CVE-2021-45347",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-45347",
"aliases": [
"CVE-2021-45347"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/forget-code/zzcms",
"type": "GIT",
"events": [
{
"introduced": "a980d8f3ca30a8cf6677b8f28dfa7fb0563b8512"
},
{
"last_affected": "a980d8f3ca30a8cf6677b8f28dfa7fb0563b8512"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:zzcms:zzcms:8.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"8.2",
"v8.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45347.json"
}
}
],
"modified": "2026-10-20T10:55:07.545562417Z",
"provider": "osv",
"references": [
"https://github.com/forget-code/zzcms/issues/2"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-45347",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 386931,
"published_at": "2022-02-14T19:15:07.857+00:00"
}