CVE-2026-23923
mediumpriority · track · 21EPSS 0.003 · 20 %ileDEEURUUSEPSS · scored 2026-10-27
An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0857Zabbix: Mehrere SchwachstellenDeutsch2026-03-24csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Zabbix ausnutzen, um Informationen offenzulegen, um Shell-Befehle einschleusen, um eine SQL Injection durchzuführen und um einen Denial of Service zu verursachen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-23923cnnvd
- https://support.zabbix.com/browse/ZBX-27641cnnvd
- https://vigilance.fr/vulnerability/Zabbix-code-execution-via-PHP-Class-Instantiation-50167cnnvd
- https://www.zabbix.com/downloadPatchcnnvd
- https://support.zabbix.com/browse/ZBX-27641enisa_euvd
- https://support.zabbix.com/browse/ZBX-27641Vendor Advisorynvd
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