PoC: formatGroup XSS in jQuery-Autocomplete v2.0.0

### Summary The default `formatGroup` and `formatResult` functions in `devbridge-autocomplete` concatenate values into HTML without escaping, allowing XSS when an attacker controls (or can taint) the suggestion data source. ### Details **1. `formatGroup` — `category` is interpolated raw.** `src/format.ts`: ```ts function formatGroup(suggestion, category) { return '

' + category + '

'; } ``` If `groupBy` is used and the grouping field of any suggestion contains HTML, that HTML is executed. **2. `formatResult` — early-return branch returns `suggestion.value` raw.** `src/format.ts`: ```ts function formatResult(suggestion, currentValue) { if (!currentValue) { return suggestion.value; // un-escaped } /* ... non-empty path escapes correctly ... */ } ``` The early-return branch is reached when `suggest()` renders with an empty `currentValue`, which happens with `minChars: 0` and a server that returns suggestions for an empty query. The returned string is concatenated into the container's `innerHTML`. ### PoC (formatGroup) ```html PoC: formatGroup XSS in jQuery-Autocomplete v2.0.0 ``` Originally identified by an earlier human analysis; the PoC above was produced with the assistance of Claude Opus 4.7. ### Impac