CVE-2025-47946 (GCVE-0-2025-47946)
Vulnerability from cvelistv5
Published
2025-05-19 19:25
Modified
2025-05-20 13:01
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Symfony UX is an initiative and set of libraries to integrate JavaScript tools into applications. Prior to version 2.25.1, rendering `{{ attributes }}` or using any method that returns a `ComponentAttributes` instance (e.g. `only()`, `defaults()`, `without()`) ouputs attribute values directly without escaping. If these values are unsafe (e.g. contain user input), this can lead to HTML attribute injection and XSS vulnerabilities. The issue is fixed in version `2.25.1` of `symfony/ux-twig-component` Those who use `symfony/ux-live-component` must also update it to `2.25.1` to benefit from the fix, as it reuses the `ComponentAttributes` class internally. As a workaround, avoid rendering `{{ attributes }}` or derived objects directly if it may contain untrusted values. Instead, use `{{ attributes.render('name') }}` for safe output of individual attributes.
References
security-advisories@github.comhttps://github.com/symfony/ux/commit/b5d1c85995c128cb926d47a96cfbfbd500b643a8
security-advisories@github.comhttps://github.com/symfony/ux/security/advisories/GHSA-5j3w-5pcr-f8hg
Impacted products
Vendor Product Version
symfony ux Version: < 2.25.1
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