XSS in Symfony Ux
CVE-2026-49210
Symfony UX is a JavaScript ecosystem for Symfony. From 2.8.0 until 2.36.0 and 3.1.0, Symfony\UX\LiveComponent\Util\ChildComponentPartialRenderer::createHtml() interpolates the client-controlled children[id].tag value from LiveComponentSubs…
Vulnerability class: XSS (Cross-Site Scripting)
Affected products
- Symfony Ux — versions >= 3.0.0, < 3.1.0, >= 2.8.0, < 2.36.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)