High
Security advisory
In Invoice Ninja before 4.4.0, there is an unsafe call to unserialize() in app/Ninja/Repositories/AccountRepository.php that may allow an attacker to deserialize arbitrary PHP classes. In certain contexts, this can result in remote code execution. The attacker's input must be hosted at http://www.geoplugin.net (cleartext HTTP), and thus a successful attack requires spoofing that site or obtaining control of it.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-33898
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:48 UTC · Revision 1
Source evidence
In Invoice Ninja before 4.4.0, there is an unsafe call to unserialize() in app/Ninja/Repositories/AccountRepository.php that may allow an attacker to deserialize arbitrary PHP classes. In certain contexts, this can result in remote code execution. The attacker's input must be hosted at http://www.geoplugin.net (cleartext HTTP), and thus a successful attack requires spoofing that site or obtaining control of it.
osv:CVE-2021-33898
Complete source record
{
"id": "f8869f70342a589a6d6a80599d1567c849ef7ebaf1a68102e1d6b8b4aa29a5c3",
"url": "https://osv.dev/vulnerability/CVE-2021-33898",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-33898",
"summary": "In Invoice Ninja before 4.4.0, there is an unsafe call to unserialize() in app/Ninja/Repositories/AccountRepository.php that may allow an attacker to deserialize arbitrary PHP classes. In certain contexts, this can result in remote code execution. The attacker's input must be hosted at http://www.geoplugin.net (cleartext HTTP), and thus a successful attack requires spoofing that site or obtaining control of it.",
"evidence": "osv:CVE-2021-33898",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-33898",
"aliases": [
"CVE-2021-33898"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/invoiceninja/invoiceninja",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "4cda561fae1a10a970b1c4251a2962ed77ccc81c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:invoiceninja:invoice_ninja:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "4.4.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v4.3.1",
"v4.3.0",
"v4.2.2",
"v4.2.1",
"v4.2.0",
"v4.1.5",
"v4.1.4",
"v4.1.3",
"v4.1.2",
"v4.1.1",
"v4.1.0",
"v4.0.1",
"v4.0.0",
"v3.9.2",
"v3.9.1",
"v3.9.0",
"v3.8.1",
"v3.8.0",
"v3.7.2",
"v3.7.1",
"v3.7.0",
"v3.6.1",
"v3.6.0",
"v3.5.1",
"v3.5.0",
"v3.4.2",
"v3.4.1",
"v3.4.0",
"v3.3.3",
"v3.3.1",
"v3.3.0",
"v3.2.1",
"v3.2.0",
"v3.1.3",
"v3.1.2",
"v3.1.1",
"v3.1.0",
"v3.0.5",
"v3.0.4",
"v3.0.3",
"v3.0.2",
"v3.0.1",
"v3.0.0",
"v2.9.5",
"v2.9.4",
"v2.9.3",
"v2.9.2",
"v2.9.1",
"v2.9.0",
"v2.8.2",
"v2.8.1",
"v2.8",
"v2.7.2",
"v2.7.1",
"v2.7",
"v2.6.11",
"v2.6.10",
"v2.6.9",
"v2.6.8",
"v2.6.7",
"v2.6.6",
"v2.6.5",
"v2.6.4",
"v2.6.3",
"v2.6.2",
"v2.6.1",
"v2.6",
"v2.5.2.2",
"v2.5.2.1",
"v2.5.2",
"v2.5.1.3",
"v2.5.1.2",
"v2.5.1.1",
"v2.5.1",
"v2.5.0.4",
"v2.5.0.3",
"v2.5.0.2",
"v2.5.0.1",
"v2.5.0",
"v2.4.9.6",
"v2.4.9.5",
"v2.4.9.4",
"v2.4.9.3",
"v2.4.9.2",
"v2.4.9.1",
"v2.4.9",
"v2.4.8.1",
"v2.4.8",
"v2.4.7",
"v2.4.6",
"v2.4.5",
"v2.4.4",
"v2.4.3",
"v2.4.2",
"v2.4.1",
"v2.4.0",
"v2.3.4",
"v2.3.3",
"v2.3.2",
"v2.3.1",
"v2.3.0",
"v2.2.2",
"v2.2.1",
"v2.2.0",
"v2.1.2",
"v2.1.1",
"v2.1.0",
"v2.0.1",
"v2.0.0",
"v2.0.0_RC1",
"v1.7.2",
"v1.7.1",
"v1.7.0",
"v1.6.1",
"v1.6.0",
"v1.5.2",
"v1.5.1",
"v1.5.0",
"v1.4.0",
"v1.3.3",
"v1.3.2",
"v1.3.1",
"v1.3.0",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.1.2",
"v1.1.1",
"v1.1.0",
"v1.0.3",
"v1.0.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33898.json"
}
}
],
"modified": "2026-10-20T10:54:44.769522148Z",
"provider": "osv",
"references": [
"https://github.com/invoiceninja/invoiceninja/issues/5909"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-33898",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 386058,
"published_at": "2021-06-06T23:15:07.517+00:00"
}