Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlAttributeSanitizer::getSupportedAttributes() omits URL-valued attributes including action, formaction, poster, and cite, so configurations that admit those attributes can leave javascript: URIs unsanitized and enable XSS when the resulting HTML is rendered or a victim submits a form or clicks a button. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
symfony symfony
>= 6.1.0-BETA1, < 6.4.40affected>= 7.0.0-BETA1, < 7.4.12affected>= 8.0.0-BETA1, < 8.0.12affected
symfony html-sanitizer
>= 6.1.0-BETA1, < 6.4.40affected>= 7.0.0-BETA1, < 7.4.12affected>= 8.0.0-BETA1, < 8.0.12affected
References
- https://github.com/symfony/symfony/security/advisories/GHSA-hhg7-c65m-h7ff ↗
- https://github.com/symfony/symfony/commit/487728e7e180a674a6d4c01bd0cb56161cc441b7 ↗
- https://github.com/symfony/symfony/releases/tag/v6.4.40 ↗
- https://github.com/symfony/symfony/releases/tag/v7.4.12 ↗
- https://github.com/symfony/symfony/releases/tag/v8.0.12 ↗