CVE-2026-49216
Symfony UX: XSS in symfony/ux-autocomplete via unescaped AJAX response data
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Symfony UX is a JavaScript ecosystem for Symfony. From 2.2.0 until 2.36.0 and 3.1.0, the Stimulus controller in symfony/ux-autocomplete renders AJAX response items in _createAutocompleteWithRemoteData() by interpolating the text field into HTML template literals (<div>${item[labelField]}</div>) rather than text, allowing attacker-controlled markup from user-supplied dropdown values to execute in the browser of any user who opens an autocomplete widget backed by the same data. This issue is fixed in versions 2.36.0 and 3.1.0.
| CWE | CWE-79 |
| Vendor | symfony |
| Product | ux |
| Published | Jul 17, 2026 |
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Affected Versions
symfony / ux
>= 3.0.0, < 3.1.0 < 2.36.0