Firely/Incendi Spark before 1.5.5-r4 lacks Content-Disposition headers in certain situations, which may cause crafted files to be delivered to clients such that they are rendered directly in a victim's web browser.Referenceshttps://github.com/FirelyTeam/spark/releases/tag/v1.5.5-r4https://github.com/FirelyTeam/spark/compare/v1.5.4-r4...v1.5.5-r4https://github.com/FirelyTeam/spark/commit/9c79320059f92d8aa4fbd6cc4fa8f9d5d6ba9941
