CVE-2026-23923CWE-470

CVE-2026-23923

Medium · published March 24, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
19.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00278 · 19.2th percentile
Weakness
CWE-470 · Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Published
2026-03-24T23:16Z
Affected products (1)
ProductVersionsFixed in
zabbix/zabbix≥ 7.4.0, < 7.4.77.4.7
References (1)
https://support.zabbix.com/browse/ZBX-27641 · [email protected]
EPSS history
Timeline
  • 24 MAR 18:29Z
    Unauthenticated arbitrary PHP class instantiation
    cvelistv5