CVE-2026-23930: medium-severity vulnerability in Zabbix
Frontend DoS via the popup.testtriggerexpr action
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.6%
An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
Zabbix · ZabbixRelated CVEs — Zabbix
In the same product, most dangerous first.
CVE-2024-42327CRITICALSQL injection in user.get APIEPSS 79.1%CVE-2024-22120CRITICALTime Based SQL Injection in Zabbix Server Audit LogEPSS 76.6%CVE-2013-3628—CVE-2013-3628EPSS 67.5%CVE-2023-29452MEDIUMRemove possibility to add html into Geomap attribution fieldEPSS 64.1%CVE-2024-36465HIGHSQL injection in Zabbix APIEPSS 39.9%CVE-2026-23921HIGHBlind, read-only SQL injection in Zabbix API via sortfield parameterEPSS 4.1%