CVE Catalog

CVE-2026-79957

HighCVSS 8.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

17th percentile - higher than 17% of all known CVEs

Summary

ServiceNext contains an insecure direct object reference (IDOR) in the /api/Usuario/GetUsuarios endpoint, which accepts a user-controlled numeric ID in the request body without verifying that the authenticated token belongs to the requested account (CWE-639). Any authenticated user can iterate the ID parameter to retrieve the full profile record of every other user, including passwords stored in cleartext (CWE-256), enabling account takeover and credential-stuffing attacks.

Risk Assessment

An authenticated user can access all other users' data, including cleartext passwords, leading to mass account takeover and a severe confidentiality breach.

Recommendation

Immediately implement authorization checks in the /api/Usuario/GetUsuarios endpoint to verify account ownership, and rotate all exposed passwords while considering secure storage (hashing).

Related vulnerabilities

Original NVD description (English source)

ServiceNext contains an insecure direct object reference (IDOR) in the /api/Usuario/GetUsuarios endpoint, which accepts a user-controlled numeric ID in the request body without verifying that the authenticated token belongs to the requested account (CWE-639). Any authenticated user can iterate the ID parameter to retrieve the full profile record of every other user, including passwords stored in cleartext (CWE-256), enabling account takeover and credential-stuffing attacks.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS