All vulnerabilities
CVE-2026-59788

Zabbix: Stored XSS vulnerability in OAuth configuration form

Zabbix Zabbix
Open in ThreatlineRecord JSON
CVSS
5.6Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.25%Chance of exploitation activity in the next 30 days, higher than 15% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published5 Oct 2026Updated 5 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

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.

Text from CVE List

Affected versions 1

  • Zabbixaffected: 7.4.0 through 7.4.11CVE List

References 1