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vuln-cve/data/2026/0xxx/CVE-2026-0809.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-0809",
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"state": "PUBLISHED",
"assignerShortName": "CERT-PL",
"dateReserved": "2026-01-09T14:56:38.137Z",
"datePublished": "2026-03-12T13:02:24.795Z",
"dateUpdated": "2026-03-12T14:04:53.073Z"
},
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Streamsoft Prestiż",
"vendor": "Streamsoft",
"versions": [
{
"lessThan": "20.0.380.92",
"status": "affected",
"version": "12.2.363.17",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kamil Dąbkowski"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use of a custom token encoding algorithm in Streamsoft Prestiż software allows&nbsp;the value of the KSeF (Krajowy System e-Faktur)&nbsp;token to be guessed&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">after analyzing how tokens with know values are encoded</span>.<br><br>This issue was fixed in version 20.0.380.92."
}
],
"value": "Use of a custom token encoding algorithm in Streamsoft Prestiż software allows the value of the KSeF (Krajowy System e-Faktur) token to be guessed after analyzing how tokens with know values are encoded.\n\nThis issue was fixed in version 20.0.380.92."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-261",
"description": "CWE-261 Weak Encoding for Password",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"shortName": "CERT-PL",
"dateUpdated": "2026-03-12T13:02:24.795Z"
},
"references": [
{
"tags": [
"product"
],
"url": "https://www.streamsoft.pl/streamsoft-prestiz/"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://cert.pl/posts/2026/03/CVE-2026-0809"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Weak KSeF token encoding in Streamsoft Prestiż",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-03-12T14:04:19.633953Z",
"id": "CVE-2026-0809",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2026-03-12T14:04:53.073Z"
}
}
]
}
}