{"id":"CVE-2026-75599","summary":"HomeBox: Stored XSS via `javascript:` URI in Custom Entity Fields","details":"HomeBox is a home inventory and organization system. Prior to 0.27.0, the maybeUrl() utility accepts markdown-style links in entity custom-field values without restricting the URL scheme, so an authenticated user can store a javascript: URI that is rendered as a clickable anchor on an item page. When another authenticated user clicks the link, attacker-controlled JavaScript executes in the victim's HomeBox origin, enabling session theft, account takeover, or data exfiltration. This issue is fixed in version 0.27.0.","aliases":["GHSA-h4x5-6587-jpwp"],"modified":"2026-11-05T21:32:25.368040290Z","published":"2026-11-05T16:02:37.520Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75599.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75599.json"},{"type":"FIX","url":"https://github.com/sysadminsmedia/homebox/commit/d76b1c9b94e91cd74e56ef8a129325d70835471f"},{"type":"WEB","url":"https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0"},{"type":"ADVISORY","url":"https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-h4x5-6587-jpwp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75599"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sysadminsmedia/homebox","events":[{"introduced":"0"},{"fixed":"bae3fb4e9b84672e4e64da15e57a14217aea7c13"},{"fixed":"d76b1c9b94e91cd74e56ef8a129325d70835471f"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"0.27.0"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"d76b1c9b94e91cd74e56ef8a129325d70835471f"}]},{"range":[{"fixed":"bae3fb4e9b84672e4e64da15e57a14217aea7c13"}],"source":"REFERENCES_TAG","original_tag":"v0.27.0"}]}}],"versions":["v0.26.2","v0.26.1","v0.26.0","v0.26.0-rc.1","v0.25.0","v0.25.0-rc.1","v0.24.2","v0.24.1","v0.24.0","v0.24.0-rc.1","v0.23.1","v0.23.0","v0.23.0-rc.1","v0.22.3","v0.22.2","v0.22.1","v0.22.0-rc.1","v0.21.0","v0.20.2","v0.20.1","v0.19.0","v0.18.0","v0.17.2","v0.17.1","v0.17.0","v0.16.0","v0.15.2","v0.15.1","v0.15.0","v0.14.2","v0.14.1","v0.14.0","v0.13.0","v0.12.1","v0.12.0","v0.11.1","v0.11.0","v0.9.2","v0.9.1","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.0","v0.5.1","v0.5.0","v0.4.0","v0.3.1","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75599.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}