CVE-2026-28149
Full vulnerability record from the local CVENow database.
Description
Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions.
Severity
CRITICAL
CVSS score
9.8
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-08-13 14:16:58.070000
Last modified
2026-10-23 18:10:00.167000
View original CVE JSON
{
"id": "CVE-2026-28149",
"sourceIdentifier": "[email protected]",
"published": "2026-08-13T14:16:58.070",
"lastModified": "2026-10-23T18:10:00.167",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions."
},
{
"lang": "es",
"value": "Inyección de objetos PHP no autenticada en Single Sign On sin cabecera versiones menor o igual que 1.6."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "miniOrange",
"product": "Headless Single Sign On",
"defaultStatus": "unaffected",
"collectionURL": "https://wordpress.org/plugins",
"packageName": "headless-single-sign-on",
"versions": [
{
"version": "n/a",
"lessThanOrEqual": "1.6",
"versionType": "custom",
"status": "affected",
"changes": [
{
"at": "1.6.1",
"status": "unaffected"
}
]
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-13T15:04:25.021559Z",
"id": "CVE-2026-28149",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-502"
}
]
}
],
"references": [
{
"url": "https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-6-php-object-injection-vulnerability?_s_id=cve",
"source": "[email protected]"
}
]
}