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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-5591",
"assignerOrgId": "07aac9b9-e3e9-4d03-a447-764bd31371d7",
"state": "PUBLISHED",
"assignerShortName": "TML",
"dateReserved": "2025-06-04T00:11:17.246Z",
"datePublished": "2026-01-05T00:02:51.266Z",
"dateUpdated": "2026-01-05T20:34:18.323Z"
},
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "affected",
"product": "Kentico Xperience",
"vendor": "Kentico",
"versions": [
{
"status": "affected",
"version": "13.0.167"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Michael Nervo"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context."
}
],
"value": "Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context."
}
],
"impacts": [
{
"capecId": "CAPEC-593",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-593 Session Hijacking"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"exploitMaturity": "UNREPORTED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1188",
"description": "CWE-1188 Insecure Default Initialization of Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "07aac9b9-e3e9-4d03-a447-764bd31371d7",
"shortName": "TML",
"dateUpdated": "2026-01-05T00:02:51.266Z"
},
"references": [
{
"url": "https://www.themissinglink.com.au/security-advisories/cve-2025-5591"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Change Kentico's default configuration as per the vendor's advisory:<br><div><a target=\"_blank\" rel=\"nofollow\" href=\"https://docs.kentico.com/13/configuring-xperience/reference-web-config-application-keys#security-settings\">https://docs.kentico.com/13/configuring-xperience/reference-web-config-application-keys#security-set...</a></div><a target=\"_blank\" rel=\"nofollow\" href=\"https://docs.kentico.com/13/macro-expressions/reference-macro-methods#advanced-text-processing\">https://docs.kentico.com/13/macro-expressions/reference-macro-methods#advanced-text-processing</a><br>"
}
],
"value": "Change Kentico's default configuration as per the vendor's advisory:\n https://docs.kentico.com/13/macro-expressions/reference-macro-methods#advanced-text-processing"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Stored Cross-site Scripting (XSS) in Kentico Xperience 13",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-01-05T20:33:51.339028Z",
"id": "CVE-2025-5591",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-05T20:34:18.323Z"
}
}
]
}
}