VulnerabilityPublished 11 Sep 2026

CVE-2026-56828: Shopper · privilege escalation via improper Livewire admin component authorization

Affects shopper/frameworkSource GCVE Database

Not known to be exploited · CVSS 8.8 High : upgrade to 2.9.2 soon.

Data as of 13 Sep 2026, 00:46 UTC

CVSS 3.1 base score

8.8High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 2.9.2

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade shopper/framework to 2.9.2.

Affected software

Product	Affected	Fixed in
Packagistshopper/framework	Affected >=2.8.0 <2.9.2	Fixed in 2.9.2

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AI-suggested

A patch is available that changes authorization checks from 'view_users' to 'access_setting' in the affected components. Users should update to a fixed version that includes these changes. The suggested fix includes modifying authorization calls in togglePermission, removePermission, mount, and store methods, and adding authorization to the deleteAction method. Regression tests should be updated accordingly. No additional mitigation is required beyond applying the official fix.

Description

## Summary Three Livewire admin components in `shopper/framework` (latest master at commit `fcd0c59`, released as v2.8.0) gate state-mutating actions on the read-only `view_users` permission. This is the same class as the issue Shopper fixed in v2.8.0 / PR #511 / [GHSA-f946-9qp6-vgch](https://github.com/shopperlabs/shopper/security/advisories/GHSA-f946-9qp6-vgch) — the PR moved most write actions from `view_users` to `access_setting`, but three were missed (one of them is a brand-new file added by the security commit itself). A staff user holding only `view_users` + `access_dashboard` (a realistic "support" or "viewer" role per Shopper's own `PermissionsTableSeeder`) can: (1) self-escalate by granting any permission to their own role; (2) create a brand-new admin team member with a chosen password and the `admin` role and then log in as that user; (3) delete arbitrary `permissions` rows (RBAC DoS) or — when `can_be_removed=true` — delete entire roles. CVSS 3.1: `AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` = 8.8 (High). CWE-285 (Improper Authorization) + CWE-862 (Missing Authorization). ## Vulnerable components (paths relative to repo root) ### 1) `packages/admin/src/Livewire/Components/Settings/Team/Permissions.php` - `togglePermission(int $id)` at line 28 calls `$this->authorize('view_users');` - `removePermission(int $id)` at line 55 calls `$this->authorize('view_users');` The Permissions blade at `packages/admin/resources/views/livewire/components/settings/team/permissions.blade.php` line 34 emits every permission's `id` directly in `wire:click` handlers, so the attacker does not even need to guess IDs — the page itself enumerates them. Net effect: any user who can mount the Permissions component (gated on `view_users`) can grant any permission row to the bound `$role`. Granting `access_setting` to the attacker's own role unlocks every action that PR #511 supposedly hardened with `->authorize('access_setting')`. Granting `delete_customers`, `edit_orders`, `edit_products`, `add_brands`, etc. is direct data-modification escalation. ### 2) `packages/admin/src/Livewire/SlideOvers/CreateTeamMember.php` - `mount()` at line 53 calls `$this->authorize('view_users');` - `store()` at line 122 calls `$this->authorize('view_users');` This file is `new file mode 100755` in commit `fcd0c59` — it was created as part of the security fix and inherited the same misclassified gate. `store()` creates a `User` with `email_verified_at = now()`, the attacker's chosen password, and any selected `role_id`. The `Radio::make('role_id')` options filter only excludes `config('shopper.admin.roles.user')`, so the `admin` role is selectable. Log out, log in as the new account → full admin. ### 3) `packages/admin/src/Livewire/Pages/Settings/Team/RolePermission.php` - `deleteAction` at lines 81-90: only gated by `->visible($this->role->can_be_removed)`, with no `->authorize()` chain. Page-level `mount` (line 52) requires only `view_users`. For any role with `can_be_removed = true`, a `view_users`-only user can call the action and delete the role (cascading the loss of permissions for every assigned user). ## Self-confirmation in the project's own test suite The following tests are green on master @ `fcd0c59` — they ARE the PoC: ``` tests/Admin/Livewire/Components/Settings/Team/PermissionsTest.php line 14-16: `givePermissionTo('view_users')` only line 36-45: "can toggle permission to role" — passes line 74-85: "can remove permission" — passes tests/Admin/Livewire/SlideOvers/CreateTeamMemberTest.php line 16-18: `givePermissionTo('view_users')` only line 29-56: "can create new team member" — passes, asserts the new user `hasRole('manager')` ``` A `view_users`-only Livewire user actor successfully toggles permissions, removes permissions, and creates a new privileged user — verified by Shopper's own regression tests. ## Suggested fix Change `$this->authorize('view_users')` to `$this->authorize('access_setting')` in: - `Permissions::togglePermission` - `Permissions::removePermission` - `Permissions::mount` (defence in depth, matches `Team\Index`) - `CreateTeamMember::mount` - `CreateTeamMember::store` Add `->authorize('access_setting')` to `RolePermission::deleteAction` (matches the pattern already applied to `generatePermissionsAction`, `createPermissionAction`, and `Team\Index::DeleteAction`). Update the two regression tests to use `access_setting` instead of `view_users` so they accurately reflect the privilege boundary. ## Resources - Prior advisory of the same class: https://github.com/shopperlabs/shopper/security/advisories/GHSA-f946-9qp6-vgch - Fix commit that introduced these residual gaps: https://github.com/shopperlabs/shopper/commit/fcd0c5920588702df5b874f432b1042abd77a50b - CWE-285 Improper Authorization - CWE-862 Missing Authorization ### Credits Reported by Vishal Shukla(@shukla304) using sechub.dev AI Agent ### Support If this disclosure was useful and if users would like to support continued o

CWE-285Improper Authorization (opens in a new tab)
Class weaknessLikelihood of exploit: HighOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
Architecture and Design
Ensure that you perform access control checks related to your business logic. These checks may be different than the access control checks that you apply to more generic resources such as files, connections, processes, memory, and database records.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
Attack patterns
Accessing Functionality Not Properly Constrained by ACLs (opens in a new tab)
Cross Zone Scripting (opens in a new tab)
Directory Indexing (opens in a new tab)
Subverting Environment Variable Values (opens in a new tab)
Using Malicious Files (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-862Missing Authorization (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #4OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
Attack patterns
Exploitation of Thunderbolt Protection Flaws (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Sep 2026, 01:30 UTC

WeaknessesCWE-285, CWE-862

Technical details

References

Community reviews

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