CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
MDC is a tool to take regular Markdown and write documents interacting deeply with a Vue component. Prior to 0.22.1, @nuxtjs/mdc uses parseMarkdown with allowDangerousHtml enabled by default and relies on validateProps, validateProp, and unsafeLinkPrefix to remove executable URLs from untrusted Markdown. validateProp checks only attributes named href or src, allowing an SVG xlink:href value represented as xLinkHref to retain a javascript: URL that executes in the page origin when selected. The data:text/html denylist entries are also compared against url.protocol, which is only data:, so an iframe src containing data:text/html survives sanitization and executes in an opaque origin when loaded. Plain href javascript: URLs, srcdoc, object, script, and base elements are already blocked, making these two paths specific sibling gaps in the sanitizer. This issue is fixed in version 0.22.1.
Засегнати продукти
- nuxt-content mdc: < 0.22.1
Вид слабост
История
- 16 септември 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-63671
- https://nvd.nist.gov/vuln/detail/CVE-2026-63671
- https://github.com/nuxt-content/mdc/security/advisories/GHSA-mxm6-v9r6-r94c
- https://github.com/nuxt-content/mdc/pull/491
- https://github.com/nuxt-content/mdc/commit/61d636c2983f021288e4fc5c4006733b38cf0d53
- https://github.com/nuxt-content/mdc/releases/tag/v0.22.1