SB2026100543 - Cross-site scripting in Zabbix

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Main Vulnerability Database SB2026100543

SB2026100543 - Cross-site scripting in Zabbix

Published: October 5, 2026

Security Bulletin ID SB2026100543
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2026-59788)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote user to execute arbitrary JavaScript in a Super Admin's browser.

The vulnerability exists due to improper validation of URL schemes in the email media type OAuth configuration form when a Super Admin opens an attacker-supplied media type import file. A remote privileged user can provide a crafted media type configuration to execute arbitrary JavaScript in a Super Admin's browser.


Remediation

Install update from vendor's website.

References