Symfony UX vulnerabilities
8 known CVE vulnerabilities in Symfony UX, translated and rated.
- CVE-2026-49215Medium
A vulnerability in Symfony UX allows CSRF attacks on LiveComponent components. The protection mechanism relies on the Accept header, which can be set by an attacker in a cross-origin request without preflight, enabling unauthorized actions on a victim's session.
- CVE-2026-49212High
A vulnerability in Symfony UX allows an attacker to swap a signed data blob between components or slots, enabling the setting of read-only properties on a target component. Affected versions are from 2.8.0 to 2.36.0 and 3.1.0.
- CVE-2026-49211High
A vulnerability in Symfony UX allows unauthenticated users to turn the public autocomplete endpoint into a broad matcher or blind boolean oracle. The issue is due to missing escaping of SQL LIKE wildcards (% , _ , \) in the client-supplied query.
- CVE-2026-49210Medium
A vulnerability in Symfony UX allows arbitrary HTML injection, including <script> tags, during Live Component re-rendering. The client-controlled children[id].tag value is interpolated directly into HTML without escaping or validation.
- CVE-2026-49209Medium
A vulnerability in Symfony UX allows an authenticated client to send a single _batch request with thousands of actions, exhausting server resources (CPU, memory, database connections) due to unbounded iteration over the actions array.
- CVE-2026-49208Medium
A vulnerability in Symfony UX allows an attacker to manipulate dates by sending relative strings (e.g., now, tomorrow, +10 years) to a LiveProp of type DateTimeInterface without a configured format. This bypasses time-based business logic checks.
- CVE-2026-55878High
A vulnerability in Symfony UX allows writing files to arbitrary locations or reading local files outside the recipe directory via a crafted recipe kit. The issue affects the ux:install console command which uses Path::isRelative() accepting paths like ../../../etc.
- CVE-2026-55877Medium
A vulnerability in Symfony UX allows XSS via the ux_icon() Twig function, which marks output as safe (is_safe=['html']) and embeds SVG source verbatim. Unsanitized local SVG files or Iconify JSON responses can contain malicious scripts, event handlers, or dangerous URL schemes.

