Critical
Security advisory
phpList 3.5.3 allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-23361
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:05 UTC · Revision 1
Source evidence
phpList 3.5.3 allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.
osv:CVE-2020-23361
Complete source record
{
"id": "f477c2eb27b70edf09d180c91c86db4846436d0b71073bcbfb605a1d1ad775c2",
"url": "https://osv.dev/vulnerability/CVE-2020-23361",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-23361",
"summary": "phpList 3.5.3 allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.",
"evidence": "osv:CVE-2020-23361",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2020-23361",
"aliases": [
"BIT-phplist-2020-23361",
"CVE-2020-23361"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/phplist/phplist3",
"type": "GIT",
"events": [
{
"introduced": "d6fa171f63c0f0846cc9bde9ce948fa0de0e73f6"
},
{
"last_affected": "d6fa171f63c0f0846cc9bde9ce948fa0de0e73f6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:phplist:phplist:3.5.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.5.3"
},
{
"last_affected": "3.5.3"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.5.3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-23361.json"
}
}
],
"modified": "2026-10-20T10:52:49.587573600Z",
"provider": "osv",
"references": [
"https://github.com/phpList/phplist3/issues/668"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-23361",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383890,
"published_at": "2021-01-27T16:15:13.123+00:00"
}