EUVD-2026-84049
GHSA-pvxx-75wv-6w9m
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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
Network endpoint, low complexity, requires a low-privilege authenticated account (PR:L); missing authz over role/function rows yields full tenant-scoped privilege escalation, so C/I/A all High, scope unchanged.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
8DescriptionCVE.org
jshERP through 3.6 contains an authorization bypass vulnerability in the userBusiness CRUD endpoints that allows authenticated users to create, modify, or delete authorization-relation rows without privilege checks. Attackers can manipulate user-role mappings and access controls to escalate privileges, strip access from other accounts, or modify role-function relationships for any user in the tenant.
Articles & Coverage 1
AnalysisAI
Authenticated users can exploit a missing authorization check in jshERP 3.6 and earlier to manipulate userBusiness authorization-relation rows, enabling privilege escalation, access revocation, or role-function modification for any tenant user. Publicly available exploit code exists (POC), and while no active exploitation has been confirmed, the flaw is network-reachable, low-complexity, and requires only a low-privileged account, posing significant risk. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated jshERP account of any privilege level (PR:L) and network access to the application's userBusiness CRUD endpoints (UserBusinessController). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vendor score of 8.7 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H) reflects a network-reachable, low-complexity flaw requiring only a low-privileged authenticated account, with high impact across confidentiality, integrity, and availability - consistent with a self-service privilege-escalation primitive, and matching the CWE-862 missing-authorization root cause and the VulnCheck advisory. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every jshERP instance, confirm which are running version 3.6 or earlier, and immediately remove internet-facing exposure by placing affected deployments behind VPN or IP allowlisting; enforce multi-factor authentication and disable or tightly scope dormant and self-registered accounts; enable verbose audit logging on authorization and role-assignment changes and begin targeted review of userBusiness relation rows for unexplained modifications. …
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External POC / Exploit Code
Leaving vuln.today