CVE-2026-54223
Full vulnerability record from the local CVENow database.
Description
UBB.threads is vulnerable to Path traversal, allowing attackers with privilege to edit templates to read and write any file on the application’s server that application has privileges to, what results in Remote Code Execution. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
Severity
HIGH
CVSS score
8.6
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-06-18 14:17:30.920000
Last modified
2026-10-26 11:10:00.157000
View original CVE JSON
{
"id": "CVE-2026-54223",
"sourceIdentifier": "[email protected]",
"published": "2026-06-18T14:17:30.920",
"lastModified": "2026-10-26T11:10:00.157",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "UBB.threads is vulnerable to Path traversal, allowing attackers with privilege to edit templates to read and write any file on the application’s server that application has privileges to, what results in Remote Code Execution. \nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions."
},
{
"lang": "es",
"value": "UBB.threads es vulnerable a salto de ruta, permitiendo a atacantes con privilegios para editar plantillas leer y escribir cualquier archivo en el servidor de la aplicación al que la aplicación tenga privilegios, lo que resulta en ejecución remota de código. Debido a que los intentos de contacto con el proveedor no tuvieron éxito, la vulnerabilidad solo se ha confirmado en la versión 7.7.5, pero también puede afectar a otras versiones."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "UBB Systems",
"product": "UBB.threads",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThanOrEqual": "7.7.5",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"subAvailabilityImpact": "LOW",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-18T13:10:37.120400Z",
"id": "CVE-2026-54223",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"references": [
{
"url": "https://cert.pl/en/posts/2026/06/CVE-2026-54219",
"source": "[email protected]"
},
{
"url": "https://www.ubbcentral.com/",
"source": "[email protected]"
}
]
}