High
Security advisory
openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.php, because json_encode_safe is not used in config/databasebackend.inc. Successful exploitation allows arbitrary command execution on the underlying operating system as root.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-26124
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 07:25 UTC · Revision 1
Source evidence
openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.php, because json_encode_safe is not used in config/databasebackend.inc. Successful exploitation allows arbitrary command execution on the underlying operating system as root.
osv:CVE-2020-26124
Complete source record
{
"id": "9f22e42adf0b47b668bc6d601937d870b99aeadf98e65be546813e68a19898f4",
"url": "https://osv.dev/vulnerability/CVE-2020-26124",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-26124",
"summary": "openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.php, because json_encode_safe is not used in config/databasebackend.inc. Successful exploitation allows arbitrary command execution on the underlying operating system as root.",
"evidence": "osv:CVE-2020-26124",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-26124",
"aliases": [
"CVE-2020-26124"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/openmediavault/openmediavault",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "ebb51bbf5a39f4955eab0073bf87f2a31926d85d"
}
],
"database_specific": {
"source": "REFERENCES"
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26124.json"
}
}
],
"modified": "2026-10-19T02:30:25.497502589Z",
"provider": "osv",
"references": [
"https://www.openmediavault.org/?p=2797",
"https://github.com/openmediavault/openmediavault/commit/ebb51bbf5a39f4955eab0073bf87f2a31926d85d"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:openmediavault:openmediavault:*:*:*:*:*:*:*:*"
],
"source": "CPE_RANGE",
"vendor_product": "openmediavault:openmediavault",
"extracted_events": [
{
"fixed": "4.1.36"
},
{
"introduced": "5.0.0"
},
{
"fixed": "5.5.12"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"fixed": "4.1.36"
},
{
"introduced": "5.x"
},
{
"fixed": "5.5.12"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-26124",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 372260,
"published_at": "2020-10-02T09:15:13.9+00:00"
}