Snipe-IT's predefined kit checkout path does not enforce Full Multiple Company Support (FMCS) tenant isolation on the checkout target. Unlike the single, bulk, API, accessory, license and consumable checkout paths, App\Services\PredefinedKitCheckoutService never calls $item->canCheckoutTo($target); it only performs the actor-vs-item policy check and an availability check before persisting the checkout. With FMCS enabled, a non-superuser who belongs to at least two companies and holds the assets.checkout permission can POST to /kits/{kit}/checkout with a user_id belonging only to company B and have a company-A asset (and likewise kit licenses, consumables and accessories) assigned to that user, bypassing the company-mismatch check that blocks the same operation on every other checkout path. The issue is fixed in Snipe-IT 8.7.2; it was runtime-verified on v8.6.3 and code-inspected on v8.7.1, and the affected service has lacked the check since 2019, so earlier FMCS deployments are likely also affected.

Snipe-IT through 8.6.4 (fixed in 8.7.0) does not enforce the components.view permission on the authenticated endpoint GET /api/v1/hardware/<asset-id>/assigned/components. The endpoint authorizes only assets.view on the parent asset before returning linked component details; the components.view check is applied only to the response's available_actions.view flag and not to the returned data. As a result, an authenticated user holding only assets.view can enumerate component IDs, names, assigned quantities, and notes that are otherwise protected — the direct GET /api/v1/components/<id> endpoint correctly returns 403 Forbidden for such users.

Snipe-IT versions before 8.7.0 fail to sanitize the category EULA text field before rendering it in checkout confirmation emails. Attackers with low-privilege permissions can inject markdown image syntax or raw HTML img tags pointing to local files or remote URLs, which the mail auto-embed library resolves server-side and returns as email attachments, exfiltrating sensitive files like .env credentials and enabling SSRF attacks.

Snipe-IT before 8.7.0 does not apply the CheckUserIsActivated middleware to the `api` middleware group in app/Http/Kernel.php, and deactivating a user does not revoke that user's Passport personal access tokens. As a result, although a deactivated account is correctly refused at web login, its existing API token continues to authenticate and to grant read and write access to the REST API (assets, users, licenses, etc.) at the account's prior permission level until the token expires. A deactivated account that retains user-management permissions can re-activate itself through the API, permanently defeating the deactivation control.

Snipe-IT versions before 8.7.0 fail to properly scope asset acceptance report queries by company, allowing authenticated reports.view users to read pending acceptances across all companies. Attackers can access the unaccepted_assets report page or CSV export to disclose cross-company inventory details and assignee names without per-row access validation.

Snipe-IT before 8.7.0 contains an authorization bypass vulnerability in Livewire components that enforce authorization only at the route level, not within component lifecycle methods. Attackers with a valid authenticated session can replay signed component snapshots via POST /livewire/update to invoke protected methods and escalate privileges, including creating OAuth clients, minting personal access tokens, and accessing sensitive admin data.

Snipe-IT 8.6.3 and earlier do not check the return value of Storage::put() when writing the signature PNG and the generated acceptance PDF in Account\AcceptanceController::store(). On filesystem drivers that return false instead of throwing on a write failure (for example the local disk with restrictive permissions, S3 with expired credentials, or a storage backend that is out of quota), execution continues into $acceptance->accept(), which sets accepted_at and the signature_filename/eula_filename fields, creates the 'accepted' action-log entry, and dispatches completion notifications even though the evidence files were never stored. The result is an acceptance record marked complete whose supporting evidence files do not exist, yielding a materially incomplete compliance artifact for EULA acknowledgement or equipment-receipt workflows. The condition is triggered when an authenticated user completes an acceptance while the storage backend is silently failing writes; an attacker cannot directly force the storage backend into that state. Fixed in Snipe-IT 8.7.0.

Snipe-IT is an open source IT asset management system. In versions up to and including 8.6.3, the report acceptance endpoints POST /reports/unaccepted_assets/sent_reminder (ReportsController::sentAssetAcceptanceReminder) and DELETE /reports/unaccepted_assets/{acceptanceId}/delete (ReportsController::deleteAssetAcceptance) are not correctly scoped when Full Multiple Company Support (FMCS) is enabled. In 8.6.3 the guard ReportsController::currentUserCanAccessAcceptance() early-exits with 'return true' when '! $user->company_id' is truthy, which is the case for every pivot-only user (a user associated with companies through the company_user pivot table whose scalar users.company_id column is NULL); versions prior to 8.6.3 lacked the guard altogether. As a result, an authenticated user holding the reports.view permission can send acceptance-reminder emails for, and permanently delete, any pending acceptance record in the install regardless of which company owns the underlying checkoutable. Deletion is destructive and forfeits the acceptance audit trail for the affected item, and the reminder email exposes limited cross-company acceptance context (item name and assignment metadata) to the recipient. Acceptance IDs are sequential integers and can be enumerated. This issue is fixed in version 8.7.0.

Snipe-IT before 8.7.0 fails to validate username case sensitivity during SAML authentication, allowing attackers to authenticate as different users by registering IdP accounts with accent or case variants of victim usernames. Attackers can exploit the default utf8mb4_unicode_ci database collation to bypass username matching and achieve account takeover through federated login paths including SAML, LDAP, and OAuth.

Snipe-IT versions before 8.7.0 contain a broken access control vulnerability in AssetModelPolicy where the files() method cascades from assets.files permission, allowing authenticated users to upload and delete file attachments on Asset Model records without the required models.files permission. Attackers with only assets.files permission can mutate shared model file attachments across company boundaries and bypass the dedicated models.files permission intended to restrict file management on the shared Asset Model catalog.