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CVE-2026-23923

Unauthenticated arbitrary PHP class instantiation

Published: Mar 24, 2026Updated: Mar 25, 2026 Sources: CVE List NVD BDUCWE-470
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 80.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:NAC:LC:NI:NA:L
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
L
Open in CVSS calculator →

Weaknesses

CWE-470

Affected Products

ZabbixZabbix
On-premDesktop App
Enterprise Software / itsm-monitoring
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
ZabbixZabbix LLC.
On-premWeb App
Enterprise Software / itsm-monitoring
zabbixoss-projectSEEnterprise Software
ооо «ред софт»commercialRUOperating Systemsaka red soft
zabbix llc.commercialUSEnterprise Softwareaka zabbix llc, zabbix

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://support.zabbix.com/browse/ZBX-27641
support.zabbix.com
https://nvd.nist.gov/vuln/detail/CVE-2026-23923
nvd.nist.gov
https://redos.red-soft.ru/search/?iblock_id=24&q=CVE-2026-23923
redos.red-soft.ru

Timeline

Published
Mar 24, 2026
Last Updated
Mar 25, 2026

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