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 import file, runs arbitrary JavaScript as the Super Admin who grants consent.
History

Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate


Mon, 05 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 05 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
First Time appeared Zabbix
Zabbix zabbix
Vendors & Products Zabbix
Zabbix zabbix

Mon, 05 Oct 2026 10:45:00 +0000

Type Values Removed Values Added
Description 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 import file, runs arbitrary JavaScript as the Super Admin who grants consent.
Title Stored XSS vulnerability in OAuth configuration form
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.6, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Zabbix

Published: 2026-10-05T10:29:43.438Z

Updated: 2026-10-05T11:23:05.997Z

Reserved: 2026-07-07T08:30:49.860Z

Link: CVE-2026-59788

cve-icon Vulnrichment

Updated: 2026-10-05T11:22:59.219Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-05T11:17:00.113

Modified: 2026-10-06T15:27:05.657

Link: CVE-2026-59788

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-05T10:29:43Z

Links: CVE-2026-59788 - Bugzilla