CVE intelligence and bounded remediation

CVE-2023-3305 — A vulnerability was found in C-DATA Web Management System up to 20230607

High CVSS 7.5

A vulnerability was found in C-DATA Web Management System up to 20230607. It has been classified as critical. This affects an unknown part of the file /cgi-bin/jumpto.php?class=user&page=config_save&isphp=1 of the component User Creation Handler. The manipulation of the argument user/newpassword leads to improper access controls. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-231801 was assigned to this vulnerability.

Severity
High
CVSS
7.5 (3.1)
Published
2023-06-18
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-284

Affected products

  • cdatatec / web_management_system

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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