{"cve":"CVE-2026-54002","nvd":{"published":"2026-07-09T19:17:05.977","modified":"2026-10-25T17:10:00.197","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":8.5},"cvss_v3":null,"cwes":["CWE-79","CWE-87"],"references":["https://github.com/getkirby/kirby/commit/0f0437b5128c910103cbc78fc34d94b2a3faef4c","https://github.com/getkirby/kirby/commit/7ad76cf9c7387462828e6ebfc8404e31b37829e9","https://github.com/getkirby/kirby/commit/9ec1873864441dbc06479ef7823da348ec7f2700","https://github.com/getkirby/kirby/commit/bb2562e16c754493a403b8df84c9883108871e4c","https://github.com/getkirby/kirby/releases/tag/4.9.4"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-54002","score":0.00547,"percentile":0.45538,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}