Story Saver for Instragram - Video Downloader 1.0.6 for Android has an exposed component that provides a method to modify the SharedPreference file. An attacker can leverage this method to inject a large amount of data into any SharedPreference file, which will be loaded into memory when the application is opened. When an attacker injects too much data, the application will trigger an OOM error and crash at startup, resulting in a persistent denial of service.

Story Saver for Instragram - Video Downloader 1.0.6 for Android exists exposed component, the component provides the method to modify the SharedPreference file. The attacker can use the method to modify the data in any SharedPreference file, these data will be loaded into the memory when the application is opened. Depending on how the data is used, this can result in various attack consequences, such as ad display exceptions.

XSS in the Video Downloader component before 1.5 of Avast Secure Browser 77.1.1831.91 and AVG Secure Browser 77.0.1790.77 allows websites to execute their code in the context of this component. While Video Downloader is technically a browser extension, it is granted a very wide set of privileges and can for example access cookies and browsing history, spy on the user while they are surfing the web, and alter their surfing experience in almost arbitrary ways.

ConverTo Video Downloader & Converter 1.4.1 allows Arbitrary File Download via the token parameter to download.php.

The Easy Video Downloader (aka com.simon.padillar.EasyVideo) application 4.4.1 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.