Opera GX Flaw Let Malicious Sites Auto-Install Mods to Steal Data From Visited Pages

A vulnerability was discovered in Opera GX, a gaming-oriented browser, which allowed malicious websites to secretly install browser extensions. These extensions could then be used to extract specific data from pages visited by the victim. Researchers demonstrated this flaw by reconstructing a user's full Gmail address from a single visit without requiring any user interaction. Opera has since fixed the issue and found no evidence of its exploitation. The flaw enabled data theft from visited pages without the user's knowledge or consent.