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EUVD-2026-377660

fkie_cve-2026-63498

Snipe-IT is an IT asset/license management system. Prior to 8.7.0, the uploaded-files API endpoint GET /api/v1/{object_type}/{id}/files/{file_id} allows an authenticated user with file-management access to upload XML and XSLT attachments and request them with the inline=true parameter. The app/Http/Controllers/Api/UploadedFilesController.php show() path does not apply the safe-inline allowlist used by the equivalent web controller, so the browser can process an attacker-controlled xml-stylesheet reference and execute JavaScript generated by the stylesheet in the Snipe-IT origin. A victim who is authorized to view the object must open the attachment URL, after which the script can read same-origin data and perform authenticated actions with the victim's privileges. This issue is fixed in version 8.7.0.

GHSA-396x-xmvh-p563 — Snipe-IT: Stored XSS via Inline XML Rendering in the Uploaded Files API

Affected: Packagist: snipe/snipe-it

Snipe-IT's uploaded-files API accepts XML documents and later serves them inline without applying the safe-inline allowlist used by the equivalent web controller. An authenticated user who can attach files to a supported object can upload an XSLT stylesheet and an XML document that references it through xml-stylesheet. When another authorized user opens the XML file through the API with ?inline=true, the browser applies the attacker-controlled stylesheet, which produces HTML containing JavaScript in the Snipe-IT origin. This was reproduced against commit df8e3b144331d0c1cc14778f900e7646d1d9a509 (v8.6.3-231-gdf8e3b1443).

The attack requires an authenticated account with file access to at least one supported object and one victim interaction. Scope changes because attacker-controlled code executes in another user's Snipe-IT security context. The script can read same-origin data available to the victim and perform authenticated actions as that victim.

### Affected Components

- app/Http/Requests/UploadFileRequest.php Allows xml uploads through filesystems.allowed_upload_extensions_for_validator. Sanitizes only files detected as image/svg+xml. Both files in this proof of concept are detected by PHP finfo as text/xml, so they are stored unchanged. - config/filesystems.php Includes xml in allowed_upload_extensions_array. - app/Http/Controllers/Api/UploadedFilesController.php, method show() Honors the attacker-controlled inline=true query parameter for every uploaded file type. C…

WID-SEC-W-2026-2981 — Snipe-IT: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Snipe-IT ausnutzen, um beliebigen Code auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe zu starten, sensible Informationen offenzulegen, Daten zu manipulieren, Konten zu übernehmen oder Denial-of-Service-Zustände herbeizuführen.