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This vulnerability affects Firefox ESR < 68.4 and Firefox < 72."},{"lang":"es","value":"Al pegar un <style> etiqueta del portapapeles en un editor de texto enriquecido, el saneador CSS no escapa caracteres < y >. Debido a que la cadena resultante es pegada directamente en el nodo de texto del elemento, esto no resulta en una inyección directa en la página web; sin embargo, si una página web posteriormente copia el innerHTML del nodo y lo asigna a otro innerHTML, esto generaría una vulnerabilidad XSS. Dos editores WYSIWYG fueron identificados con este comportamiento, pueden existir más. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a la versión 68.4 y Firefox versiones anteriores a la versión 72."}],"affected":[{"source":"security@mozilla.org","affectedData":[{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"before 68.4","status":"affected"}]},{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"before 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