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[NEW] [UNPATCHED] [critical] Zabbix: Vulnerability allows cross-site scripting

high
A remote, anonymous attacker can exploit a vulnerability in Zabbix to conduct a cross-site scripting attack.

CSIRTS triage

vendor: Zabbixproduct: ZabbixCross-site scripting
What
A vulnerability in Zabbix allows remote, anonymous attackers to conduct cross-site scripting attacks.
Who is affected
Deployments of Zabbix.
Urgency
Remediation is critical due to the risk of cross-site scripting attacks.
Action
Apply patches for Zabbix as soon as they are available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
high
Published
2026-07-28
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2525

Recent advisories for Zabbix

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories