CVE-2026-49228Public exploitNetwork attack vector

Cross-vendor product access via missing ownership checks

Published Aug 18, 2026 · Updated Aug 18, 2026

Authorization bypass in givanz Vvveb before 1.0.8.4 allows remote authenticated users to read or modify other Vendors' products via backend product actions. The admin/controller/product/products.php duplicate and delete handlers trust a caller-supplied product_id, and product.sql queries load or delete rows without consistently constraining product.admin_id to the current Vendor unless broad product capabilities are present. Vendor-level access is required, but that is sufficient in multi-vendor deployments to view product details, create unauthorized copies, and remove products and related catalog records.

CVSS severity8.8
High
EPSS probability0.48%
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 givanz Vvveb before 1.0.8.4 allows remote authenticated users to read or modify other Vendors' products via backend product actions. The admin/controller/product/products.php duplicate and delete handlers trust a caller-supplied product_id, and product.sql queries load or delete rows without consistently constraining product.admin_id to the current Vendor unless broad product capabilities are present. Vendor-level access is required, but that is sufficient in multi-vendor deployments to view product details, create unauthorized copies, and remove products and related catalog records.

The record

CVE
CVE-2026-49228
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
givanz
Product
Vvveb
Classifications
CWE-639
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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=< 1.0.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

givanz · Vvvebversion=< 1.0.8.4

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

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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