CVE-2026-79957 json
ServiceNext Insecure Direct Object Reference via GetUsarios
published 2026-10-14 25 d ago modified 2026-10-16 23 d ago also EUVD-2026-101517
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 23 d ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.blacklanternsecurity.com https://blog.blacklanternsecurity.com/p/cve-2026-79957-insecure-direct-object referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
- ServiceNext SerTec
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
blog.blacklanternsecurity.com
/p/cve-2026-79957-insecure-direct-object
third-party-advisory, exploit
Sources
- CVE List CVE-2026-79957
- NVD CVE-2026-79957
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