FKIE_CVE-2026-63301
Vulnerability from fkie_nvd - Published: 2026-07-28 11:17 - Updated: 2026-10-24 13:10
Severity
Summary
In Quick.CMS, the administrative user interface restricts deletion of the primary language by omitting the corresponding option from the interface; however, the underlying language-deletion API endpoint does not enforce an equivalent server-side authorization check. As a result, an authenticated administrator can bypass the UI-level restriction and delete the primary language by sending a direct HTTP request to the API endpoint. Successful deletion of the primary language results in a Denial of Service (DoS) of application.
Critically, when combined with a separate Cross-Site Request Forgery (CSRF) vulnerability (CVE-2026-1468) an unauthenticated remote attacker can craft a malicious link, which if visited by an authenticated administrator, will trigger the DoS condition without direct access to the application
The vendor assessed the likelihood of exploitation as very low and determined that a fix is not necessary.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Quick.CMS",
"vendor": "OpenSolution",
"versions": [
{
"lessThanOrEqual": "6.8.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "cvd@cert.pl"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Quick.CMS, the administrative user interface restricts deletion of the primary language by omitting the corresponding option from the interface; however, the underlying language-deletion API endpoint does not enforce an equivalent server-side authorization check. As a result, an authenticated administrator can bypass the UI-level restriction and delete the primary language by sending a direct HTTP request to the API endpoint. Successful deletion of the primary language results in a Denial of Service (DoS) of application.\n\n\nCritically, when combined with a separate Cross-Site Request Forgery (CSRF) vulnerability (CVE-2026-1468)\u00a0an unauthenticated remote attacker can craft a malicious link, which if visited by an authenticated administrator, will trigger the DoS condition without direct access to the application\n\n\n\n\nThe vendor assessed the likelihood of exploitation as very low and determined that a fix is\u00a0not necessary."
},
{
"lang": "es",
"value": "En Quick.CMS, la interfaz de usuario administrativa restringe la eliminaci\u00f3n del idioma principal al omitir la opci\u00f3n correspondiente de la interfaz; sin embargo, el endpoint de la API subyacente para la eliminaci\u00f3n de idiomas no aplica una verificaci\u00f3n de autorizaci\u00f3n equivalente en el lado del servidor. Como resultado, un administrador autenticado puede eludir la restricci\u00f3n a nivel de interfaz de usuario y eliminar el idioma principal enviando una petici\u00f3n HTTP directa al endpoint de la API. La eliminaci\u00f3n exitosa del idioma principal resulta en una Denegaci\u00f3n de Servicio (DoS) de la aplicaci\u00f3n.\n\nCr\u00edticamente, cuando se combina con una vulnerabilidad de Falsificaci\u00f3n de Petici\u00f3n en Sitios Cruzados (CSRF) separada (CVE-2026-1468), un atacante remoto no autenticado puede crear un enlace malicioso que, si es visitado por un administrador autenticado, activar\u00e1 la condici\u00f3n de DoS sin acceso directo a la aplicaci\u00f3n.\n\nEl proveedor evalu\u00f3 la probabilidad de explotaci\u00f3n como muy baja y determin\u00f3 que una soluci\u00f3n no es necesaria."
}
],
"id": "CVE-2026-63301",
"lastModified": "2026-10-24T13:10:00.147",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cvd@cert.pl",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-63301",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-28T12:29:19.814322Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-28T11:17:03.823",
"references": [
{
"source": "cvd@cert.pl",
"url": "https://cert.pl/en/posts/2026/07/CVE-2026-63301"
},
{
"source": "cvd@cert.pl",
"url": "https://opensolution.org/"
}
],
"sourceIdentifier": "cvd@cert.pl",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-602"
}
],
"source": "cvd@cert.pl",
"type": "Secondary"
}
]
}
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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