CVE intelligence and bounded remediation

CVE-2025-41077 — Viafirma Inbox security vulnerability

High CVSS 8.6

IDOR vulnerability has been found in Viafirma Inbox v4.5.13 that allows any authenticated user without privileges in the application to list all users, access and modify their data. This allows the user's email addresses to be modified and, subsequently, using the password recovery functionality to access the application by impersonating any user, including those with administrative permissions.

Severity
High
CVSS
8.6 (4.0)
Published
2026-01-12
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-639

Affected products

  • viafirma / inbox

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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