Description
WIMOOR through commit ec86736 contains an authentication bypass vulnerability that allows attackers to impersonate any tenant and privilege level by sending an unsigned X-USERINFO header. Attackers reaching backend service ports directly, bypassing the gateway, can forge companyid and manager or admin usertype values to read and modify other tenants' orders, finance data, and Amazon seller authorizations.
Published: 2026-10-16
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Authentication Bypass leading to tenant impersonation and unauthorized data access
Action: Immediate Patch
AI Analysis

Impact

The vulnerability resides in WIMOOR's UserInfoFilter, allowing an attacker to forge an unsigned X‑USERINFO header. This bypasses authentication and lets the attacker impersonate any tenant or user role, obtaining the same privileges as the forged user. The impact includes reading or modifying orders, finance data, and Amazon seller authorizations of other tenants.

Affected Systems

The affected product is the WIMOOR ERP system released by wimoor-erp, specifically versions containing commit ec86736. No specific version range or release number is listed, so any instance using that commit is vulnerable.

Risk and Exploitability

The CVSS score is 9.1, indicating critical severity. The exploit requires network access to the backend services and the ability to send arbitrary HTTP headers; no authentication is needed. Attackers who can reach these ports can immediately forge the header and gain full tenant permissions. The EPSS score is not available and the vulnerability is not in CISA's KEV catalog, but the critical impact and remote nature make it a high risk.

Generated by OpenCVE AI on October 16, 2026 at 19:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Deploy the latest patch or release that removes the insecure X‑USERINFO handling or ensures the header is signed and verified.
  • Disable or remove the X‑USERINFO header processing on the application or enforce strict signature validation before using the values.
  • Restrict direct access to backend service ports to trusted internal networks and/or apply firewall rules to block unauthorized traffic.

Generated by OpenCVE AI on October 16, 2026 at 19:06 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 19 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Wimoor-erp
Wimoor-erp wimoor
Vendors & Products Wimoor-erp
Wimoor-erp wimoor

Fri, 16 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description WIMOOR through commit ec86736 contains an authentication bypass vulnerability that allows attackers to impersonate any tenant and privilege level by sending an unsigned X-USERINFO header. Attackers reaching backend service ports directly, bypassing the gateway, can forge companyid and manager or admin usertype values to read and modify other tenants' orders, finance data, and Amazon seller authorizations.
Title WIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO Header
Weaknesses CWE-290
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Wimoor-erp Wimoor
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-16T21:17:17.620Z

Reserved: 2026-10-16T14:31:20.461Z

Link: CVE-2026-111691

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-16T18:17:52.493

Modified: 2026-10-16T22:17:22.613

Link: CVE-2026-111691

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T12:53:58Z

Weaknesses
  • CWE-290

    Authentication Bypass by Spoofing