Critical
Security advisory
ValidFormBuilder version 4.5.4 contains a PHP Object Injection vulnerability in Valid Form unserialize method that can result in Possible to execute unauthorised system commands remotely and disclose file contents in file system.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-1000059
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:20 UTC · Revision 1
Source evidence
ValidFormBuilder version 4.5.4 contains a PHP Object Injection vulnerability in Valid Form unserialize method that can result in Possible to execute unauthorised system commands remotely and disclose file contents in file system.
osv:CVE-2018-1000059
Complete source record
{
"id": "7aeee6d8a283a4db886f477f86d5d6eb5e10eb758d3d912875fbca77f1438e3b",
"url": "https://osv.dev/vulnerability/CVE-2018-1000059",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-1000059",
"summary": "ValidFormBuilder version 4.5.4 contains a PHP Object Injection vulnerability in Valid Form unserialize method that can result in Possible to execute unauthorised system commands remotely and disclose file contents in file system.",
"evidence": "osv:CVE-2018-1000059",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-1000059",
"aliases": [
"CVE-2018-1000059"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/validformbuilder/validformbuilder",
"type": "GIT",
"events": [
{
"introduced": "153efaaf47601b8372cc10852d881273d40eca1c"
},
{
"last_affected": "153efaaf47601b8372cc10852d881273d40eca1c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:validformbuilder:validform_builder:4.5.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.5.4"
},
{
"last_affected": "4.5.4"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.5.4",
"v4.5.4"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000059.json"
}
}
],
"modified": "2026-10-20T10:50:14.374196545Z",
"provider": "osv",
"references": [
"https://github.com/validformbuilder/validformbuilder/issues/126"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-1000059",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381434,
"published_at": "2018-02-09T23:29:02.167+00:00"
}