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CVE-2026-49216

Symfony UX: XSS in symfony/ux-autocomplete via unescaped AJAX response data PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
symfony / uxaffected >= 3.0.0, < 3.1.0; affected < 2.36.0

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.