CVE-2026-61807: Snipe-IT: Stored DOM XSS via table selected-count IDs

The table component derives data-selected-count-id from the component $name value. On manufacturer and supplier detail pages, stored manufacturer or supplier names are passed into affected table components as that name value. The client-side JavaScript later reads the browser-decoded data-selected-count-id, uses it as a selector, and concatenates countId.substring(1) directly into an HTML string passed to jQuery .after().

Affected commit:

b224cc636c6780386e3f73f03d1171f52ab4c37a

Example payload for a manufacturer or supplier name: x[foo="><svg/onload=alert(1)>"]>

The issue appears to involve the following flow:

Stored supplier/manufacturer name -> table component data-selected-count-id -> browser decodes the attribute -> JavaScript reads countId -> countId is used as a selector -> countId.substring(1) is concatenated into HTML -> jQuery .after() inserts attacker-controlled markup -> JavaScript executes in the victim’s browser

Potential impact includes arbitrary JavaScript execution in the browser of an authenticated Snipe-IT user who views the affected supplier or manufacturer detail page. If the victim has elevated privileges, this may allow access to data or actions available to that user’s session.