Xbox Game Pass free for life? It would seem possible

Xbox Game Pass is undoubtedly one of the most beloved and successful subscription services in the gaming world, offering a catalog of hundreds of games to millions of users. However, this service appears to suffer from a logical flaw in its subscription management system which, if exploited, would allow users to enjoy the service almost indefinitely and completely free of charge. This surprising discovery takes on the contours of an emblematic case regarding corporate responsibility, especially after learning that Microsoft was informed of the issue by a researcher through the Microsoft Security Response Center portal (submission number VULN-161061), where Microsoft chose not to consider it a threat.

Details on the anomaly reported by the researcher

The mechanism, which we were able to analyze thanks to the information provided by the same Italian researcher, is based on a logical flaw in the subscription cancellation and refund process. The procedure seems to be as follows:

1. A user subscribes to a regular monthly Xbox Game Pass subscription.
2. Subsequently, after having used the service for most of the month (for example, 16 days later), the user requests cancellation directly from their subscription management area.
3. At this point, Microsoft's system will offer two options, among which the problematic one is to terminate the subscription immediately and receive a full refund.

It is precisely this second option that constitutes the core of the problem. Instead of refunding only the unused days of service, the system returns the entire monthly fee. Consequently, the user has effectively played for almost a whole month without paying anything. This process could be repeated cyclically, guaranteeing an almost perpetual access to the Game Pass catalog.

The report to Microsoft and the surprising response

Aware of the gravity of the apparent flaw and the potential economic damage to Microsoft, considering that this service boasts over 35 million users worldwide, the researcher followed the standard "Responsible Disclosure" procedure, reporting everything to the Microsoft Security Response Center (MSRC), the entity responsible for collecting and managing security vulnerabilities. However, the MSRC's response to the particular report (submission number VULN-161061) was as swift as it was disappointing. In an official communication, Microsoft's security team closed the report with the following reasoning:

"Although your report included good information, it does not meet Microsoft's criteria to be considered a security vulnerability, because a malicious user is not able to exploit it against another user remotely. This is a fraud-related issue rather than a security vulnerability."

It therefore seems that Microsoft deliberately downgraded a potential million-dollar flaw to a simple "fraud issue," inviting the reporter to contact Xbox support rather than investigate and disclose whether such mechanics are indeed intentional.

Our invitation not to underestimate these reports

MSRC’s decision is crucial. By refusing to classify the problem as a security vulnerability and directing the matter towards non-specialized support channels, Microsoft has effectively communicated that it does not consider the issue a critical priority for the security of its systems. According to the ethics of the research community, this stance releases the reporter from the obligation of confidentiality. If the producer does not recognize the severity of a flaw, informing the public becomes a lawful and often useful act to exert pressure on the company to resolve problems that evidently harm its own economy and the future of one of its highly appreciated services. At the time of writing this article, the anomaly seems to still be operational. It remains to be seen whether the current subscription suspension mechanics were indeed intended by Microsoft. In any case, we would welcome their opinion on this controversial matter.