CVE-2026-59788mediumCWE-79

CVE-2026-59788: medium-severity vulnerability in Zabbix

Stored XSS vulnerability in OAuth configuration form

Published

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.6epss 0.3%
exploitation probability
0.3%top 85% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
Zabbix · Zabbix