CVE-2026-5750
HIGH EPSS 10.8%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
7.6 CVSS 4.0
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
An insecure direct object reference (IDOR) vulnerability in the Fullstep V5 registration process allows authenticated users to access data belonging to other registered users through various vulnerable authenticated resources in the application. The vulnerable endpoints result from: '/api/suppliers/v1/suppliers//false' to list user information; and '/#/supplier-registration/supplier-registration//2' to update your user information (personal details, documents, etc.).
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
10.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-639
References 1
- incibe.es https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-fullstep
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.