CVE-2026-56829

HIGH 8.1

Shopper: Unauthorized inventory stock manipulation via unlocked variant property in VariantStock component

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.2, packages/admin/src/Livewire/Components/Products/VariantStock.php exposes stockAction() without edit_product_variants authorization and leaves public $variant client mutable because it lacks the Livewire Locked attribute. Any authenticated admin-panel user, including staff with only browse_products, can select an arbitrary product variant and inventory location through component state, then submit a positive or negative quantity adjustment. This permits browse-only staff to inflate stock, reduce stock, or force out-of-stock states for variants outside the current page. This issue is fixed in version 2.9.2.

CWE	CWE-862
Vendor	shopperlabs
Product	shopper
Published	Sep 15, 2026
Last Updated	Sep 15, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Affected Versions

shopperlabs / shopper

< 2.9.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/shopperlabs/shopper/security/advisories/GHSA-g3f9-g5vj-p62f github.com: https://github.com/shopperlabs/shopper/pull/570 github.com: https://github.com/shopperlabs/shopper/commit/bf72e2753e21296184596d507336c7d65ecd46ff github.com: https://github.com/shopperlabs/shopper/releases/tag/v2.9.2