Detections
Analytics
CVE-2026-55877
medium
Description
Symfony UX is a JavaScript ecosystem for Symfony. From 2.17.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux_icon() Twig function is marked is_safe=['html'] and Icon::toHtml() inlines SVG source verbatim, allowing unsanitized local SVG files or Iconify on-demand JSON body responses containing nested script elements, on* event handlers, or dangerous URL schemes to execute cross-site scripting. This issue is fixed in versions 2.36.1 and 3.2.0.
References
https://github.com/symfony/ux/security/advisories/GHSA-6v8j-33hc-mv84
https://github.com/symfony/ux/releases/tag/v3.2.0
https://github.com/symfony/ux/releases/tag/v2.36.1
https://github.com/symfony/ux/commit/3a4964ec3700f0af4e13f7bfbf8bb3174c3e79d1