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vuln-cve/data/2026/9xxx/CVE-2026-9053.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-9053",
"assignerOrgId": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9",
"state": "PUBLISHED",
"assignerShortName": "9front",
"dateReserved": "2026-05-19T21:39:13.119Z",
"datePublished": "2026-05-22T02:57:35.162Z",
"dateUpdated": "2026-05-22T12:36:11.446Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9",
"shortName": "9front",
"dateUpdated": "2026-05-22T02:57:35.162Z"
},
"affected": [
{
"vendor": "9front",
"product": "9front",
"platforms": [
"x86",
"32 bit",
"64 bit"
],
"packageName": "mothra",
"repo": "https://git.9front.org/plan9front/9front/HEAD/info.html",
"modules": [
"mothra"
],
"programFiles": [
"/sys/src/cmd/mothra/forms.c"
],
"programRoutines": [
{
"name": "rdform()"
}
],
"versions": [
{
"status": "affected",
"version": "f04e113279274526a8dae34de373027b68921fbf",
"lessThan": "d145acc9ef0da47131af6ad94e87264e04870d47",
"versionType": "git"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "Mothra would respect a default value given by a website for HTML file upload forms. An attacker could craft a website with a malicious default file path, and then conceal this form element.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "Mothra would respect a default value given by a website for HTML file upload forms. An attacker could craft a website with a malicious default file path, and then conceal this form element."
}
]
}
],
"references": [
{
"url": "https://git.9front.org/plan9front/9front/d145acc9ef0da47131af6ad94e87264e04870d47/commit.html",
"tags": [
"mitigation"
]
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "ACTIVE",
"vulnConfidentialityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "PROOF_OF_CONCEPT",
"Safety": "NOT_DEFINED",
"Automatable": "NO",
"Recovery": "AUTOMATIC",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "LOW",
"providerUrgency": "AMBER",
"version": "4.0",
"baseSeverity": "MEDIUM",
"baseScore": 6.9,
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:P/AU:N/R:A/RE:L/U:Amber"
}
}
],
"timeline": [
{
"time": "2026-05-10T18:00:00.000Z",
"lang": "en",
"value": "Initial private disclosure"
},
{
"time": "2026-05-11T18:18:00.000Z",
"lang": "en",
"value": "Fix committed"
}
],
"credits": [
{
"lang": "en",
"value": "Kristo",
"type": "finder"
},
{
"lang": "en",
"value": "Kristo",
"type": "reporter"
},
{
"lang": "en",
"value": "Jacob Moody",
"type": "coordinator"
},
{
"lang": "en",
"value": "Kristo",
"type": "remediation developer"
},
{
"lang": "en",
"value": "cinap_lenrek",
"type": "remediation developer"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-434",
"lang": "en",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type"
}
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-22T12:35:42.430223Z",
"id": "CVE-2026-9053",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-22T12:36:11.446Z"
}
}
]
}
}