CVE-2026-86550 [MEDIUM] – NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of inte

NuBrowser lacks protocol whitelist validation for the S.browser_fallback_url field of intent://, allowing attackers to inject javascript: URLs via 302 redirects. This results in a universal cross‑site scripting (UXSS) vulnerability that enables script execution within the origin of arbitrary websites.