CVE-2026-23923

MEDIUM EPSS 20.2%

Published Mar 24, 20263mo ago · Modified Jun 17, 20262w ago

6.9 CVSS 4.0

Medium

Published Mar 24, 2026 3mo ago

Last Modified Jun 17, 2026 2w ago

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 Details

Base Score

6.9

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

20.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-470

References 1

support.zabbix.com https://support.zabbix.com/browse/ZBX-27641

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.