{"id":"CVE-2026-59788","title":"The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser","summary":"The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an…","severity":"medium","cvss":5.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-79"],"vendor":"Zabbix","product":"Zabbix","affected":["Zabbix >= 7.4.0 <= 7.4.11"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T12:17:10.463","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59788","references":[{"url":"https://support.zabbix.com/browse/ZBX-28198","label":"security@zabbix.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-05T11:22:54.202007Z"},"cvssSource":"cna","ingestedAt":"2026-10-05T11:18:17.204Z","slug":"CVE-2026-59788","body":"## Overview\n\nThe email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":31,"depthScoreParts":{"impact":30.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}