Cyber Resilience

CVE-2023-29456

Medium

Published: 13 July 2023

Published
13 July 2023
Modified
03 November 2025
KEV Added
Patch
CVSS Score v3.1 5.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L
EPSS Score 0.0015 36.0th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-29456 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Zabbix Frontend. Its CVSS base score is 5.7 (Medium).

Operationally, ranked at the 36.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

URL validation scheme receives input from a user and then parses it to identify its various components. The validation scheme can ensure that all URL components comply with internet standards.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

zabbix
frontend
4.0.0 — 4.0.46 · 5.0.0 — 5.0.35 · 6.0.0 — 6.0.18

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20 CWE-79

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References