CVE intelligence and bounded remediation

CVE-2026-3111 — Insecure Direct Object Reference (IDOR) vulnerability in Campus Educativa specifically at the endpoint...

Medium CVSS 6.9

Insecure Direct Object Reference (IDOR) vulnerability in Campus Educativa specifically at the endpoint '/archivos/usuarios/[ID]/[username]/thumb_AAxAA.jpg' (translated as 80x90 and 40x45). Successful exploitation of this vulnerability could allow an unauthenticated attacker to access the profile photos of all users via a manipulated URL, enabling them to collect user photos en masse. This could lead to these photos being used maliciously to impersonate identities, perform social engineering, link identities across platforms using facial recognition, or even carry out doxxing.

Severity
Medium
CVSS
6.9 (4.0)
Published
2026-03-16
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-284

Affected products

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Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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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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