Read the docs
TI-2023-13835 Aliases CVE-2023-29456GHSA-q598-p9hw-59vj

Inefficient URL schema validation

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00556 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zabbix:frontend:*:*:*:*:*:*:*:*4.0.0 – 4.0.46; 5.0.0 – 5.0.35; 6.0.0 – 6.0.18; 6.4.0 – 6.4.3VulnerableZabbix
  • cpe:2.3:a:zabbix:frontend:*:*:*:*:*:*:*:* Versions 4.0.0 – 4.0.46; 5.0.0 – 5.0.35; 6.0.0 – 6.0.18; 6.4.0 – 6.4.3 Vulnerable ·Zabbix

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-29456
  2. 2026-10-03 Alias added: GHSA-q598-p9hw-59vj

References

  • TI-2022-21297 X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode CVSS 3.1CRITICAL 9.8
  • TI-2023-15994 Leak of zbx_session cookie when using a scheduled report that includes a dashboard with a URL widget. CVSS 3.1CRITICAL 9.6
  • TI-2025-20084 Frontend arbitrary file read in oauth.authorize action CVSS 4.0MEDIUM 6.8
  • TI-2023-13836 Insufficient validation of Action form input fields CVSS 3.1MEDIUM 6.3
  • TI-2023-13834 Reflected XSS in several fields of graph form CVSS 3.1MEDIUM 6.1
  • TI-2025-31622 Frontend DoS vulnerability due to asymmetric resource consumption CVSS 4.0MEDIUM 6.0
See all 12 →

Sources