The sourceMapURL feature in devtools was missing security checks that would have allowed a webpage to attempt to include local files or other files that should have been inaccessible. This vulnerability affects Firefox < 99.
La función sourceMapURL en devtools le faltaban controles de seguridad que habrían permitido que una página web intentara incluir archivos locales u otros archivos que deberían haber sido inaccesibles. Esta vulnerabilidad afecta a Firefox < 99.
Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, execute script unexpectedly, obtain sensitive information, conduct spoofing attacks, or execute arbitrary code. A security issue was discovered with the sourceMapURL feature of devtools. An attacker could potentially exploit this to include local files that should have been inaccessible.
