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.
Metrics
Affected Vendors & Products
References
History
Fri, 10 Jul 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Symfony
Symfony ux |
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| Vendors & Products |
Symfony
Symfony ux |
Thu, 09 Jul 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 08 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Symfony UX: XSS in symfony/ux-icons via unsanitized SVG content in local files and Iconify on-demand responses | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-07-08T21:32:37.407Z
Updated: 2026-07-09T14:40:25.026Z
Reserved: 2026-06-17T16:59:42.759Z
Link: CVE-2026-55877
Updated: 2026-07-09T14:21:01.646Z
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