CVE-2026-16746Public exploitNetwork attack vector

Cross-store financial disclosure via unchecked store identifiers

Published Aug 5, 2026 · Updated Aug 5, 2026

Authorization bypass in MultiVendorX before 5.0.11 allows remote authenticated users to read other vendors' commission and financial data. The commissions REST endpoint accepts a user-controlled store_id or commission ID without confirming that the requested record belongs to the caller's store. An approved Store Owner session and REST nonce are required, and disclosure depends on a second store with existing commission records.

CVSS severity2.7
Low
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in MultiVendorX before 5.0.11 allows remote authenticated users to read other vendors' commission and financial data. The commissions REST endpoint accepts a user-controlled store_id or commission ID without confirming that the requested record belongs to the caller's store. An approved Store Owner session and REST nonce are required, and disclosure depends on a second store with existing commission records.

The record

CVE
CVE-2026-16746
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
MultiVendorX
Product
MultiVendorX
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MultiVendorX · MultiVendorXversion=0 <5.0.11

Published CVSS scores

2.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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