{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54002","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-11T16:34:11.635Z","datePublished":"2026-07-09T18:34:29.041Z","dateUpdated":"2026-07-09T19:26:59.702Z"},"containers":{"cna":{"title":"Kirby: Cross-site scripting (XSS) from incomplete HTML/XML sanitization in `Dom::sanitize()`","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-87","lang":"en","description":"CWE-87: Improper Neutralization of Alternate XSS Syntax","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/getkirby/kirby/security/advisories/GHSA-wr9h-4r83-f4v6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getkirby/kirby/security/advisories/GHSA-wr9h-4r83-f4v6"},{"name":"https://github.com/getkirby/kirby/commit/0f0437b5128c910103cbc78fc34d94b2a3faef4c","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/commit/0f0437b5128c910103cbc78fc34d94b2a3faef4c"},{"name":"https://github.com/getkirby/kirby/commit/7ad76cf9c7387462828e6ebfc8404e31b37829e9","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/commit/7ad76cf9c7387462828e6ebfc8404e31b37829e9"},{"name":"https://github.com/getkirby/kirby/commit/9ec1873864441dbc06479ef7823da348ec7f2700","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/commit/9ec1873864441dbc06479ef7823da348ec7f2700"},{"name":"https://github.com/getkirby/kirby/commit/bb2562e16c754493a403b8df84c9883108871e4c","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/commit/bb2562e16c754493a403b8df84c9883108871e4c"},{"name":"https://github.com/getkirby/kirby/releases/tag/4.9.4","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/releases/tag/4.9.4"},{"name":"https://github.com/getkirby/kirby/releases/tag/5.4.4","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/releases/tag/5.4.4"}],"affected":[{"vendor":"getkirby","product":"kirby","versions":[{"version":"< 4.9.4","status":"affected"},{"version":">= 5.0.0, < 5.4.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-09T18:34:29.041Z"},"descriptions":[{"lang":"en","value":"Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins that use the writer or list fields or call Dom::sanitize(), Sane::sanitize(), Sane::Html::sanitize(), Sane::Svg::sanitize(), Sane::Xml::sanitize(), Sane::sanitizeFile(), or file sanitizeContents() with untrusted input allow malicious markup injected as children of an unknown HTML or XML tag to pass through Dom::sanitize() without being correctly sanitized, causing stored cross-site scripting. This issue is fixed in versions 4.9.4 and 5.4.4."}],"source":{"advisory":"GHSA-wr9h-4r83-f4v6","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-09T19:26:51.396531Z","id":"CVE-2026-54002","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":"2026-07-09T19:26:59.702Z"}}]}}