CVE-2026-66829
Gravedad CVSS v4.0:
BAJA
Tipo:
CWE-601
Redireccionamiento de URL a sitio no confiable (Open Redirect)
Fecha de publicación:
06/08/2026
Última modificación:
11/08/2026
Descripción
*** Pendiente de traducción *** URL Redirection to Untrusted Site (&#39;Open Redirect&#39;) vulnerability in the HTML5 scrubber in rrrene html_sanitize_ex allows a remote attacker to force visitors of a page to navigate to a site of the attacker&#39;s choosing via a element in sanitized HTML. HtmlSanitizeEx.html5/1 keeps attacker-supplied elements in its output. A meta element acts on the whole document rather than on the fragment it was embedded in, so it can also declare document-wide directives such as Content-Security-Policy.<br />
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This is not cross-site scripting. Browsers do not navigate a meta refresh to a javascript: URL, so the uppercase JAVASCRIPT: filter bypass yields no script execution and none was demonstrated.<br />
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This issue affects html_sanitize_ex: from 0.3.1 before 1.5.3.
Impacto
Puntuación base 4.0
2.30
Gravedad 4.0
BAJA
Puntuación base 3.x
6.10
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:rrrene:htmlsanitizeex:*:*:*:*:*:*:*:* | 0.3.1 (incluyendo) | 1.5.3 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



