{"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"}}]}}